mukti advani | CSIR-Central Road Research Institute, New-Delhi, India (original) (raw)

Papers by mukti advani

Research paper thumbnail of Visualising Blackspot Improvement at Nagpur

Lecture notes in civil engineering, Dec 18, 2023

Research paper thumbnail of Pedestrians Safety Analysis at Uncontrolled Midblock Crosswalks

Lecture notes in civil engineering, Nov 11, 2022

Research paper thumbnail of Gradual sustainability approach for urban transport through subtle measures

Current Science

Capacity enhancement and demand reduction are the two most common approaches considered to deal w... more Capacity enhancement and demand reduction are the two most common approaches considered to deal with increased congestion in urban areas. The first approach involves construction of various infrastructure for providing increased capacity for motorized vehicles, whereas the second approach includes restricting movement of road users from congested area(s). Experiences from across the world have demonstrated that both the approaches have failed to resolve the problem of congestion. The present study has been carried out to assess traffic characteristics around five metro (rail) station areas in New Delhi, India, to examine the effect of subtle changes towards improvement for all road users. The impact of alternate traffic circulation plans, based on various traffic management strategies around these metro stations, has been compared using microscopic traffic simulation. The study has clearly demonstrated that parking related policies (including segregated parking lanes for cycle rickshaws and electric-rickshaws) can result in improvement in vehicular speed by 2 to 6 km/h in the influence zone of the selected metro stations for all categories of motorized vehicles. This is expected to result in total daily savings of 593 litres of petrol, 103 litres diesel and 643 kg CNG, and total CO 2 e (equivalent) reduction of 3.5 tonne/day in all the five metro stations. It is evident that the sustainable scenarios (viz. segregation/shifting of on-street parking, signal design, etc.) or similar to those that have been suggested, would result in significant reduction in fuel consumption and corresponding CO 2 e (equivalent) emissions. Implementing agencies can choose the scenario best suited to them, among the given options.

Research paper thumbnail of Accessibility of Pedestrians Affected by Non-Access Control Multilane Highway: A Case Study of NH-8, India

There is a growing optimism in using accessibility as the entry point in rural transport interven... more There is a growing optimism in using accessibility as the entry point in rural transport intervention in developing countries. The methodology of such planning is still evolving and there is scope for a more detailed method to identify appropriate measures aimed at addressing accessibility needs. In India, most of the highways are non-access control multilane highway providing median-cut as an only road crossing facility. Most of them are having some adjacent activities along the corridor. These adjacent activities play an important role in socio-economic life of villagers living adjacent to such highways. Apart from the mobility of highway commuters, accessibility of such people living in adjacent village s is very much important for activity-based transportation planning. This paper describes the study which consists of two different sections on National Highway No.8; one with 4 lane wide roads (at village Vav) and other at 6 lane wide road (at village Pipodara) in Surat District,...

Research paper thumbnail of Performance Evaluation of Uncontrolled Intersection using Microscopic Simulation

Uncontrolled intersections are integral part of the road network in rural and suburban areas. As ... more Uncontrolled intersections are integral part of the road network in rural and suburban areas. As the speed of the vehicles on major roads are high (130 km/hr) but National Highway had given design speed as 100km/hr in India and the conflict that occur at the uncontrolled intersections result in severe injury. The required gap between vehicles for safe crossing varies with drivers and the type of vehicle that is waiting to enter the intersection area. Video graphic survey was carried out at an uncontrolled T intersection located in a rural area and the accepted/rejected gap to across the intersection area was extracted. The critical gap for the crossing action was estimated and the capacity of the intersection was estimated by USHCM method and by micro simulation tool. Estimated capacity values by both the methods were nearly same. At the T intersection, three streams of traffic were likely to have conflict. To reduce the waiting time of the crossing vehicles and conflicts, the right...

Research paper thumbnail of Pedestrian Level of Service Model for Evaluating and Improving Sidewalks From Various Land uses

There are several tools and methods developed for evaluation of sidewalks at street level. But mo... more There are several tools and methods developed for evaluation of sidewalks at street level. But most of the tools have neglected the importance of considering pedestrians’ perception in assessing Pedestrian Level of Service (PLOS) of sidewalks. Therefore, in contrast to the earlier research work at the level of service of sidewalks, the present study developed a PLOS model to assess street level sidewalk infrastructure facilities from various land uses considering pedestrians’ perceptions. This study specifies 10 sidewalk characteristics that cater various pedestrian needs based on the type of land uses where they belong to. The proposed method has been tested in five Indian cities viz; Delhi, Mumbai, Vadodara, Surat and Ahmedabad. The results of the study indicate that PLOS is capable of identifying the main shortcoming of the street network and sidewalk infrastructure in the form of physical and user characteristics. This method allows pedestrians to convey their needs and expectat...

Research paper thumbnail of Non-motorised transport trips in India: past, present and future

Research paper thumbnail of Transport system, safety and city size interrelationship in India

Hkkjr dh ifjogu O;oLFkk] lq j{kk vkS j 'kgjh vkdkj dk lg&la ca /k eq fä vkMok.kh] uhye ts xq Irk]... more Hkkjr dh ifjogu O;oLFkk] lq j{kk vkS j 'kgjh vkdkj dk lg&la ca /k eq fä vkMok.kh] uhye ts xq Irk] iq f.kZ ek ijhnk ,oa ch-dudnq jbZ lh,lvkbZ vkj&ds a nz h; lM+ d vuq la /kku la LFkku] ubZ fnYyh 110 025 lkjka 'k % fdlh Hkh 'kgj@{ks =k dh lM+ d ifjogu dh fLFkjrk dks ekius ds fy, eks Vj pkfyr okgu ds lkFk&lkFk xS j&eks Vj pkfyr okgu dk mi;ks x lcls ljy ekina M gS A bl rjg dh lgHkkfxrk dks iz Hkkfor djus okys fofHkUUk dkjd 'kgj vkdkj] tula [;k ?kuRo] lM+ d us VodZ ?kuRo] iz fr O;fä vk;] oS dfYid lk/kuks a dk iz ;ks x djus es a lq jf{kr cq fu;knh lq fo/kkvks a ] vkfn gks ldrs gS a A dbZ 'kks /kdrkZ vks a us vyx&vyx ns 'kks a ds fy, bl rjg ds va rl± ca /kks a dk v/;;u fd;k gS A gkyka fd Hkkjr es a fefJr Hkw fe mi;ks x okys 'kgjks a dh fo'ks "krkvks a dk v/;;u ugha fd;k x;k gS A bl i=k ea s eks Vj pkfyr vkS j xS j eks Vj pkfyr ifjogu ds mi;ks x dks leÖkus ds fy,] 'kgj dk lM+ d us VodZ ] Hkw xks y vkS j tulka f[;dh; fo'ks "krkvks a ds chp vkilh la ca /k dk v/;;u djus dk iz ;kl fd;k x;k gS A

Research paper thumbnail of Estimating Critical Gap of Roundabouts Based on RMS Model

Research paper thumbnail of Reduction in Idling Fuel Losses and Corresponding Emissions Due to Awareness Campaign at the Signalized Intersections in Delhi

Transportation in Developing Economies, 2022

With increasing traffic at intersections, it becomes essential to install traffic control devices... more With increasing traffic at intersections, it becomes essential to install traffic control devices to regulate the movements. These controlled intersections are known as “Signalized Intersections”. When the vehicles are waiting for their turn to clear the signalized intersection, the drivers normally do not keep the engines off and this results in extra fuel consumption due to idling and increased vehicular emissions. This fuel consumption can be saved along with reduction in corresponding emissions by switching off vehicle engine during idling at signals. In the present study, a 40 day-long awareness campaign has been carried out at 100 signalized intersections in Delhi to create awareness among drivers regarding switching off their engines during idling. Impact of awareness campaign has been estimated based on number of vehicles switching-off their engines during idling which is further used to estimate idling fuel losses and corresponding emissions. The observed proportion of switched-off Two-wheelers before, during, and after phase of awareness campaign was ~ 18%, ~ 51%, and ~ 44%, respectively. Similar trend has also been observed for Three-Wheeler users. There was ~ 22% reduction in idling fuel losses for petrol fuel between “before” and “after” campaign phase. Similarly, ~ 14%, 12%, and 19% reduction in Diesel, CNG, and LPG idling fuel losses was observed due to awareness campaign. Furthermore, it was estimated that 9357 CO2eq (CO2 equivalent) t/d of GHG emission was generated at selected 100 signalized traffic intersections “before” the start of the awareness campaign. This was reduced to 7976 t/day (~ 1381 CO2eq t/day or ~ 14% reduction) in “after” phase of the awareness campaign. The CO2eq is used to compare the emission from various GHGs (both direct and indirect) on the basis of their global-warming potential (GWP).

Research paper thumbnail of Developing Bicycle Serviceability Index Bsi at Mid Blocks for the Roads Carrying Mixed Traffic Case Study of Delhi

NISCAIR-CSIR, India, Jun 1, 2020

Hkkjrh; oS Kkfud ,oa vkS |ks fxd vuq la /kku if=kdk o"kZ 28 va d ¼1½ tw u 2020 i-63&69 fefJr ;krk... more Hkkjrh; oS Kkfud ,oa vkS |ks fxd vuq la /kku if=kdk o"kZ 28 va d ¼1½ tw u 2020 i-63&69 fefJr ;krk;kr okyh lM+ dks a ds fy, e/;&[ka M es a lkbfdy ds fy, ls ok {kerk lw pdka d fodflr djuk&fnYyh dh fLFkfr dk v/;;u eq fä vkMok.kh ,oa iz hfr flUgk ifjogu ;ks tuk vkS j i;kZ oj.k iz Hkkx] lh,lvkbZ vkj&ds a nz h; lM+ d vuq la /kku la LFkku] ubZ fnYyh 110 025 lkjka 'k % fefJr Vª S fQd ifjn'; es a lkbfdy dk e/;[ka M pky dk v/;;u ,d tfVy ?kVuk gS ] ftls fcuk fdlh foHkktd ds leku lM+ d ij vkdkj vkS j Hkkj okys okguks a ds :i es a ,d gh le; es a gks uk ekik x;k gS A ;g v/;;u ;krk;kr ds fy, ,d lkbfdy ls ok{kerk lw pdka d ¼BSI½ dks fodflr djus ij ds a fnz r gS tgka lkbfdy fcuk fdlh fof'k"V ;k vyx Vª S d@ys u ds lkFk ,oa eks Vj pkfyr okguks a ds lkFk vkxs c<+ ldrs gS a A orZ eku v/;;u ds fy,] jk"Vª h; jkt/kkuh {ks =k ¼,ulhvkj½ es a nks LFkkuks a ij 10&20 ehVj dh tky ya ckbZ ij Ms Vk ,d=k fd;k x;k gS A nks uks a LFkkuks a ij] O;Lr dky dks lfEefyr djus ds fy, 4 ?ka Vs dh ohfM;ks xz kQh dh xbZ gS A Ms Vk fu"d"kZ .k ds fy,] ohfM;ks Vs i ij 0-5m × 0-5m dk ,d fxz M cuk;k x;k gS A Ms Vk es a vkl&ikl ds okgu ds LFkku vkS j iz dkj] iz okg] xfr vkS j LFkku ds vk/kkj ij eks Vj pkfyr vkS j xS j eks Vj pkfyr okguks a dk vka dM+ k fy;k x;k gS A fofHkUUk fudkys x, eki na Mks a ds chp lgla ca /k ns [kus ds fy, ,d lg la ca /k eS Vª hDl dks fodflr fd;k x;k gS A blds vykok] lka f[;dh; rduhdks a dk mi;ks x djds egRoiw .kZ ekina Mks a dh igpku dh xbZ gS A ;g ns [kk x;k gS fd lkbfdy dh xfr lM+ d ij ekS tw n ;krk;kr fLFkfr;ks a dh lhek ds fy, cgq r fHkUUk ugha gks rh gS A igpkus tkus okys vf/kdka 'k egRoiw .kZ iS jkehVj dh ihoS Y;w <=0-05 gS a ] lkbfdy vkS j vU; okgu vkS j eks Vj pkfyr okguks a ds chp ik'oZ nw jh egRoiw .kZ gS a A rnuq lkj] lkbfdy ls ok{kerk lw pdka d ¼ch,lvkbZ ½ ds fy, ,d ekW My iz Lrkfor gS tks rhu egRoiw .kZ ekina Mks a ij ;kuh lkbfdy ds chp dh nw jh] vklUUk okgu dk iz dkj vkS j eks Vj pkfyr okguks a }kjk dCtk fd, x, LFkku dks fn, x, le; ij vk/kkfjr gS A iz R;s d lM+ d ds [ka M ds ch,lvkbZ ¼BSI½ Ldks j dks [kks tus ds fy, vkS j ekW My dks dS fycz s V djus ds fy, ,df=kr Ms Vk dk mi;ks x fd;k x;k gS A 'kgjh lM+ dks a }kjk iz nku fd, x, ch,lvkbZ dks ifjHkkf"kr djus ds fy,] DyLVj fodflr fd, x, gS a A vkS lr flYgw V pkS M+ kbZ ¼,,lMCY;w ½ dk mi;ks x DyLVj dh la [;k fu/kkZ fjr djus ds fy, fd;k tkrk gS vkS j ch,lvkbZ Ldks j dks rhu Js f.k;ks a ¼,] ch vkS j lh½ es a oxhZ Ñr fd;k tkrk gS ¼DyLVfja x fof/k dk mi;ks x djds ½A

Research paper thumbnail of Measurement of Pedestrian Flow Parameters-Case study of Dakor, Gujarat

In India, for different religious reasons, people walk to certain places for worship. On few spec... more In India, for different religious reasons, people walk to certain places for worship. On few specific events, this gathering used to be very large and needs special attention with respect to pedestrians' facilities on road for walking safely and comfortably. The design of a roadway/ highway facility is possible only when capacity is related to the projected requirements of traffic. The design features governed by capacity are the highway type, number of lanes, width of lanes, intersections and weaving sections. By comparing the present traffic volume with the capacity of existing roadway networks, their adequacy or deficiency can be assessed. In this paper one such location of Kheda district of Gujarat, 'Dakor' was studied at the time of peak hours for Level of Service offered by the road segment. The results were compared with both National and International standards.

Research paper thumbnail of Nonmotorized Transport Trips in India: Past, Present, and Future

Non-motorized trips (NMT) in Indian cities always play major role in present sustainable part of ... more Non-motorized trips (NMT) in Indian cities always play major role in present sustainable part of transportation. However, this is not due to NMT based planning, policy, infrastructure, investment, management or enforcement. NMT trips survive only due to captive users. Though, in last few decades scenario has changed and is moving rapidly towards motorized way of travelling. This lead to many a problems like congestion, pollution and accidents. Only in recent past some encouragement has been shown for NMTs in National Policy. This paper presents the amount of NMTs in India, trend of NMTs, crash patterns involving NMTs and infrastructure suitability. Finally it has concluded that the present need of Indian cities is to recognize and encourage the most primitive modes of transport through all possible measures.

Research paper thumbnail of Developing methodology to assess walking facilities on Indian roads

Research paper thumbnail of Development of Landuse based Pedestrian Level of Service in Indian Context

Walking is a basic as well as environment friendly mode of transportation. Walking facilities req... more Walking is a basic as well as environment friendly mode of transportation. Walking facilities require cautious design strategy consideration to promote walking which helps to reduce congestion, pollution, rate of accidents and other transport related problems from developing countries like India. Better facilities will encourage people for walking and will provide healthy environment for future. Design of these facilities ensure the precise forecast of pedestrian flows and realization of capacity. In this paper macroscopic stream flow characteristics of pedestrians were observed considering various land uses for urban areas. Five different types of land use such as terminal, institutional, recreational, commercial and residential were categorized for study purpose. Data were collected from 21 urban locations of eight cities including metropolitan cities in India. Pedestrian flow models were developed and macroscopic flow diagrams (MFD) were prepared separately for various land uses....

Research paper thumbnail of Behavioural analysis of pedestrians for walking on footpath and on carriageway in 'space-sharing' traffic scenario

Indian highways, 2013

Usage of main carriageway by pedestrians is a common site on urban Indian roads. While quality of... more Usage of main carriageway by pedestrians is a common site on urban Indian roads. While quality of footpath is an obvious factor, it is found that traffic on the main carriageway also plays an important role in pedestrians' decisions to use the carriageway for walking, especially in heterogeneous traffic conditions. Present studies focus on the effect of traffic characteristics on this decision by pedestrians with a case study of an urban road located in New Delhi. Heterogeneous traffic conditions on the sample section have been measured by 'space-occupancy,' which is based on classified traffic volume count data. Data shows an increased percentage of walking on carriageways during the medium space-occupancy on carriageways compared to low and high space-occupancies. The significance of this behavioural difference has been verified through statistical tests. The reasons behind this could be the concerns of safety and comfort as safety is compromised during low space-occup...

Research paper thumbnail of Quantification of reduction in air pollution due to bypassing traffic in Delhi, India

The worldwide known relationship between transport and air pollution is demanding innovative solu... more The worldwide known relationship between transport and air pollution is demanding innovative solutions for satisfying the mobility needs with minimum pollution. While reducing the mobility demand is a longterm target, the most commonly adopted approach is to decongest the ‘hot spots’ having an alarming level of pollution. The main objective of providing bypasses and expressways is to divert the through traffic coming into the city. Delhi is one of the most congested and polluted cities in India. Among the various sources, vehicular pollution is a significant source of air pollution. Different policies and strategies have been developed to decongest and depollute Delhi. The Eastern Peripheral Expressway (EPE) is one such option implemented to decongest the national capital of India by diverting the traffic not destined for Delhi. It becomes essential to evaluate the performance of such significant infrastructural investments for better decision making in the future. Accordingly, the ...

Research paper thumbnail of Demand estimation for public transport systems-case study of Delhi

Since large sums of money and other scarce resources are invested in creating transport infrastru... more Since large sums of money and other scarce resources are invested in creating transport infrastructure, it is important to avoid projects, which fail to provide expected benefits. The aim of the present study is to develop a travel demand model for public and private transport modes, which can provide better estimates of travel demand. This study examines the demand of public transport trips, including the ongoing metro network in

Research paper thumbnail of Feeder connectivity for sustainable transportation systems

Research paper thumbnail of Estimating the Impact of Flyover on Vehicle Delay, Fuel Consumption, and Emissions—A Case Study

Road Over Bridges (ROB or flyover as it is popularly called in India) are considered as a solutio... more Road Over Bridges (ROB or flyover as it is popularly called in India) are considered as a solution to reduce the delay at an oversaturated at-grade signalized intersection. However, this provision of flyover remains a short-term solution, as it is seen that flyover also reaches to the same congestion level after a few years due to increased personalized vehicular traffic. To analyze the effect of a flyover over the years, vehicular delay, fuel consumption, and emission for the range of traffic volume are estimated. One intersection, Bhikaji Cama Place intersection in New Delhi, is considered as a case study. This is a four-legged signal-controlled intersection. Three scenarios are considered. Scenario A is the existing condition of flyover and signal phasing plan, Scenario B is with flyover and with proposed signal phasing plan, and Scenario C is without the flyover and proposed signal phasing plan. Scenario B includes comparison of alternate signal phasing plans to obtain the best ...

Research paper thumbnail of Visualising Blackspot Improvement at Nagpur

Lecture notes in civil engineering, Dec 18, 2023

Research paper thumbnail of Pedestrians Safety Analysis at Uncontrolled Midblock Crosswalks

Lecture notes in civil engineering, Nov 11, 2022

Research paper thumbnail of Gradual sustainability approach for urban transport through subtle measures

Current Science

Capacity enhancement and demand reduction are the two most common approaches considered to deal w... more Capacity enhancement and demand reduction are the two most common approaches considered to deal with increased congestion in urban areas. The first approach involves construction of various infrastructure for providing increased capacity for motorized vehicles, whereas the second approach includes restricting movement of road users from congested area(s). Experiences from across the world have demonstrated that both the approaches have failed to resolve the problem of congestion. The present study has been carried out to assess traffic characteristics around five metro (rail) station areas in New Delhi, India, to examine the effect of subtle changes towards improvement for all road users. The impact of alternate traffic circulation plans, based on various traffic management strategies around these metro stations, has been compared using microscopic traffic simulation. The study has clearly demonstrated that parking related policies (including segregated parking lanes for cycle rickshaws and electric-rickshaws) can result in improvement in vehicular speed by 2 to 6 km/h in the influence zone of the selected metro stations for all categories of motorized vehicles. This is expected to result in total daily savings of 593 litres of petrol, 103 litres diesel and 643 kg CNG, and total CO 2 e (equivalent) reduction of 3.5 tonne/day in all the five metro stations. It is evident that the sustainable scenarios (viz. segregation/shifting of on-street parking, signal design, etc.) or similar to those that have been suggested, would result in significant reduction in fuel consumption and corresponding CO 2 e (equivalent) emissions. Implementing agencies can choose the scenario best suited to them, among the given options.

Research paper thumbnail of Accessibility of Pedestrians Affected by Non-Access Control Multilane Highway: A Case Study of NH-8, India

There is a growing optimism in using accessibility as the entry point in rural transport interven... more There is a growing optimism in using accessibility as the entry point in rural transport intervention in developing countries. The methodology of such planning is still evolving and there is scope for a more detailed method to identify appropriate measures aimed at addressing accessibility needs. In India, most of the highways are non-access control multilane highway providing median-cut as an only road crossing facility. Most of them are having some adjacent activities along the corridor. These adjacent activities play an important role in socio-economic life of villagers living adjacent to such highways. Apart from the mobility of highway commuters, accessibility of such people living in adjacent village s is very much important for activity-based transportation planning. This paper describes the study which consists of two different sections on National Highway No.8; one with 4 lane wide roads (at village Vav) and other at 6 lane wide road (at village Pipodara) in Surat District,...

Research paper thumbnail of Performance Evaluation of Uncontrolled Intersection using Microscopic Simulation

Uncontrolled intersections are integral part of the road network in rural and suburban areas. As ... more Uncontrolled intersections are integral part of the road network in rural and suburban areas. As the speed of the vehicles on major roads are high (130 km/hr) but National Highway had given design speed as 100km/hr in India and the conflict that occur at the uncontrolled intersections result in severe injury. The required gap between vehicles for safe crossing varies with drivers and the type of vehicle that is waiting to enter the intersection area. Video graphic survey was carried out at an uncontrolled T intersection located in a rural area and the accepted/rejected gap to across the intersection area was extracted. The critical gap for the crossing action was estimated and the capacity of the intersection was estimated by USHCM method and by micro simulation tool. Estimated capacity values by both the methods were nearly same. At the T intersection, three streams of traffic were likely to have conflict. To reduce the waiting time of the crossing vehicles and conflicts, the right...

Research paper thumbnail of Pedestrian Level of Service Model for Evaluating and Improving Sidewalks From Various Land uses

There are several tools and methods developed for evaluation of sidewalks at street level. But mo... more There are several tools and methods developed for evaluation of sidewalks at street level. But most of the tools have neglected the importance of considering pedestrians’ perception in assessing Pedestrian Level of Service (PLOS) of sidewalks. Therefore, in contrast to the earlier research work at the level of service of sidewalks, the present study developed a PLOS model to assess street level sidewalk infrastructure facilities from various land uses considering pedestrians’ perceptions. This study specifies 10 sidewalk characteristics that cater various pedestrian needs based on the type of land uses where they belong to. The proposed method has been tested in five Indian cities viz; Delhi, Mumbai, Vadodara, Surat and Ahmedabad. The results of the study indicate that PLOS is capable of identifying the main shortcoming of the street network and sidewalk infrastructure in the form of physical and user characteristics. This method allows pedestrians to convey their needs and expectat...

Research paper thumbnail of Non-motorised transport trips in India: past, present and future

Research paper thumbnail of Transport system, safety and city size interrelationship in India

Hkkjr dh ifjogu O;oLFkk] lq j{kk vkS j 'kgjh vkdkj dk lg&la ca /k eq fä vkMok.kh] uhye ts xq Irk]... more Hkkjr dh ifjogu O;oLFkk] lq j{kk vkS j 'kgjh vkdkj dk lg&la ca /k eq fä vkMok.kh] uhye ts xq Irk] iq f.kZ ek ijhnk ,oa ch-dudnq jbZ lh,lvkbZ vkj&ds a nz h; lM+ d vuq la /kku la LFkku] ubZ fnYyh 110 025 lkjka 'k % fdlh Hkh 'kgj@{ks =k dh lM+ d ifjogu dh fLFkjrk dks ekius ds fy, eks Vj pkfyr okgu ds lkFk&lkFk xS j&eks Vj pkfyr okgu dk mi;ks x lcls ljy ekina M gS A bl rjg dh lgHkkfxrk dks iz Hkkfor djus okys fofHkUUk dkjd 'kgj vkdkj] tula [;k ?kuRo] lM+ d us VodZ ?kuRo] iz fr O;fä vk;] oS dfYid lk/kuks a dk iz ;ks x djus es a lq jf{kr cq fu;knh lq fo/kkvks a ] vkfn gks ldrs gS a A dbZ 'kks /kdrkZ vks a us vyx&vyx ns 'kks a ds fy, bl rjg ds va rl± ca /kks a dk v/;;u fd;k gS A gkyka fd Hkkjr es a fefJr Hkw fe mi;ks x okys 'kgjks a dh fo'ks "krkvks a dk v/;;u ugha fd;k x;k gS A bl i=k ea s eks Vj pkfyr vkS j xS j eks Vj pkfyr ifjogu ds mi;ks x dks leÖkus ds fy,] 'kgj dk lM+ d us VodZ ] Hkw xks y vkS j tulka f[;dh; fo'ks "krkvks a ds chp vkilh la ca /k dk v/;;u djus dk iz ;kl fd;k x;k gS A

Research paper thumbnail of Estimating Critical Gap of Roundabouts Based on RMS Model

Research paper thumbnail of Reduction in Idling Fuel Losses and Corresponding Emissions Due to Awareness Campaign at the Signalized Intersections in Delhi

Transportation in Developing Economies, 2022

With increasing traffic at intersections, it becomes essential to install traffic control devices... more With increasing traffic at intersections, it becomes essential to install traffic control devices to regulate the movements. These controlled intersections are known as “Signalized Intersections”. When the vehicles are waiting for their turn to clear the signalized intersection, the drivers normally do not keep the engines off and this results in extra fuel consumption due to idling and increased vehicular emissions. This fuel consumption can be saved along with reduction in corresponding emissions by switching off vehicle engine during idling at signals. In the present study, a 40 day-long awareness campaign has been carried out at 100 signalized intersections in Delhi to create awareness among drivers regarding switching off their engines during idling. Impact of awareness campaign has been estimated based on number of vehicles switching-off their engines during idling which is further used to estimate idling fuel losses and corresponding emissions. The observed proportion of switched-off Two-wheelers before, during, and after phase of awareness campaign was ~ 18%, ~ 51%, and ~ 44%, respectively. Similar trend has also been observed for Three-Wheeler users. There was ~ 22% reduction in idling fuel losses for petrol fuel between “before” and “after” campaign phase. Similarly, ~ 14%, 12%, and 19% reduction in Diesel, CNG, and LPG idling fuel losses was observed due to awareness campaign. Furthermore, it was estimated that 9357 CO2eq (CO2 equivalent) t/d of GHG emission was generated at selected 100 signalized traffic intersections “before” the start of the awareness campaign. This was reduced to 7976 t/day (~ 1381 CO2eq t/day or ~ 14% reduction) in “after” phase of the awareness campaign. The CO2eq is used to compare the emission from various GHGs (both direct and indirect) on the basis of their global-warming potential (GWP).

Research paper thumbnail of Developing Bicycle Serviceability Index Bsi at Mid Blocks for the Roads Carrying Mixed Traffic Case Study of Delhi

NISCAIR-CSIR, India, Jun 1, 2020

Hkkjrh; oS Kkfud ,oa vkS |ks fxd vuq la /kku if=kdk o"kZ 28 va d ¼1½ tw u 2020 i-63&69 fefJr ;krk... more Hkkjrh; oS Kkfud ,oa vkS |ks fxd vuq la /kku if=kdk o"kZ 28 va d ¼1½ tw u 2020 i-63&69 fefJr ;krk;kr okyh lM+ dks a ds fy, e/;&[ka M es a lkbfdy ds fy, ls ok {kerk lw pdka d fodflr djuk&fnYyh dh fLFkfr dk v/;;u eq fä vkMok.kh ,oa iz hfr flUgk ifjogu ;ks tuk vkS j i;kZ oj.k iz Hkkx] lh,lvkbZ vkj&ds a nz h; lM+ d vuq la /kku la LFkku] ubZ fnYyh 110 025 lkjka 'k % fefJr Vª S fQd ifjn'; es a lkbfdy dk e/;[ka M pky dk v/;;u ,d tfVy ?kVuk gS ] ftls fcuk fdlh foHkktd ds leku lM+ d ij vkdkj vkS j Hkkj okys okguks a ds :i es a ,d gh le; es a gks uk ekik x;k gS A ;g v/;;u ;krk;kr ds fy, ,d lkbfdy ls ok{kerk lw pdka d ¼BSI½ dks fodflr djus ij ds a fnz r gS tgka lkbfdy fcuk fdlh fof'k"V ;k vyx Vª S d@ys u ds lkFk ,oa eks Vj pkfyr okguks a ds lkFk vkxs c<+ ldrs gS a A orZ eku v/;;u ds fy,] jk"Vª h; jkt/kkuh {ks =k ¼,ulhvkj½ es a nks LFkkuks a ij 10&20 ehVj dh tky ya ckbZ ij Ms Vk ,d=k fd;k x;k gS A nks uks a LFkkuks a ij] O;Lr dky dks lfEefyr djus ds fy, 4 ?ka Vs dh ohfM;ks xz kQh dh xbZ gS A Ms Vk fu"d"kZ .k ds fy,] ohfM;ks Vs i ij 0-5m × 0-5m dk ,d fxz M cuk;k x;k gS A Ms Vk es a vkl&ikl ds okgu ds LFkku vkS j iz dkj] iz okg] xfr vkS j LFkku ds vk/kkj ij eks Vj pkfyr vkS j xS j eks Vj pkfyr okguks a dk vka dM+ k fy;k x;k gS A fofHkUUk fudkys x, eki na Mks a ds chp lgla ca /k ns [kus ds fy, ,d lg la ca /k eS Vª hDl dks fodflr fd;k x;k gS A blds vykok] lka f[;dh; rduhdks a dk mi;ks x djds egRoiw .kZ ekina Mks a dh igpku dh xbZ gS A ;g ns [kk x;k gS fd lkbfdy dh xfr lM+ d ij ekS tw n ;krk;kr fLFkfr;ks a dh lhek ds fy, cgq r fHkUUk ugha gks rh gS A igpkus tkus okys vf/kdka 'k egRoiw .kZ iS jkehVj dh ihoS Y;w <=0-05 gS a ] lkbfdy vkS j vU; okgu vkS j eks Vj pkfyr okguks a ds chp ik'oZ nw jh egRoiw .kZ gS a A rnuq lkj] lkbfdy ls ok{kerk lw pdka d ¼ch,lvkbZ ½ ds fy, ,d ekW My iz Lrkfor gS tks rhu egRoiw .kZ ekina Mks a ij ;kuh lkbfdy ds chp dh nw jh] vklUUk okgu dk iz dkj vkS j eks Vj pkfyr okguks a }kjk dCtk fd, x, LFkku dks fn, x, le; ij vk/kkfjr gS A iz R;s d lM+ d ds [ka M ds ch,lvkbZ ¼BSI½ Ldks j dks [kks tus ds fy, vkS j ekW My dks dS fycz s V djus ds fy, ,df=kr Ms Vk dk mi;ks x fd;k x;k gS A 'kgjh lM+ dks a }kjk iz nku fd, x, ch,lvkbZ dks ifjHkkf"kr djus ds fy,] DyLVj fodflr fd, x, gS a A vkS lr flYgw V pkS M+ kbZ ¼,,lMCY;w ½ dk mi;ks x DyLVj dh la [;k fu/kkZ fjr djus ds fy, fd;k tkrk gS vkS j ch,lvkbZ Ldks j dks rhu Js f.k;ks a ¼,] ch vkS j lh½ es a oxhZ Ñr fd;k tkrk gS ¼DyLVfja x fof/k dk mi;ks x djds ½A

Research paper thumbnail of Measurement of Pedestrian Flow Parameters-Case study of Dakor, Gujarat

In India, for different religious reasons, people walk to certain places for worship. On few spec... more In India, for different religious reasons, people walk to certain places for worship. On few specific events, this gathering used to be very large and needs special attention with respect to pedestrians' facilities on road for walking safely and comfortably. The design of a roadway/ highway facility is possible only when capacity is related to the projected requirements of traffic. The design features governed by capacity are the highway type, number of lanes, width of lanes, intersections and weaving sections. By comparing the present traffic volume with the capacity of existing roadway networks, their adequacy or deficiency can be assessed. In this paper one such location of Kheda district of Gujarat, 'Dakor' was studied at the time of peak hours for Level of Service offered by the road segment. The results were compared with both National and International standards.

Research paper thumbnail of Nonmotorized Transport Trips in India: Past, Present, and Future

Non-motorized trips (NMT) in Indian cities always play major role in present sustainable part of ... more Non-motorized trips (NMT) in Indian cities always play major role in present sustainable part of transportation. However, this is not due to NMT based planning, policy, infrastructure, investment, management or enforcement. NMT trips survive only due to captive users. Though, in last few decades scenario has changed and is moving rapidly towards motorized way of travelling. This lead to many a problems like congestion, pollution and accidents. Only in recent past some encouragement has been shown for NMTs in National Policy. This paper presents the amount of NMTs in India, trend of NMTs, crash patterns involving NMTs and infrastructure suitability. Finally it has concluded that the present need of Indian cities is to recognize and encourage the most primitive modes of transport through all possible measures.

Research paper thumbnail of Developing methodology to assess walking facilities on Indian roads

Research paper thumbnail of Development of Landuse based Pedestrian Level of Service in Indian Context

Walking is a basic as well as environment friendly mode of transportation. Walking facilities req... more Walking is a basic as well as environment friendly mode of transportation. Walking facilities require cautious design strategy consideration to promote walking which helps to reduce congestion, pollution, rate of accidents and other transport related problems from developing countries like India. Better facilities will encourage people for walking and will provide healthy environment for future. Design of these facilities ensure the precise forecast of pedestrian flows and realization of capacity. In this paper macroscopic stream flow characteristics of pedestrians were observed considering various land uses for urban areas. Five different types of land use such as terminal, institutional, recreational, commercial and residential were categorized for study purpose. Data were collected from 21 urban locations of eight cities including metropolitan cities in India. Pedestrian flow models were developed and macroscopic flow diagrams (MFD) were prepared separately for various land uses....

Research paper thumbnail of Behavioural analysis of pedestrians for walking on footpath and on carriageway in 'space-sharing' traffic scenario

Indian highways, 2013

Usage of main carriageway by pedestrians is a common site on urban Indian roads. While quality of... more Usage of main carriageway by pedestrians is a common site on urban Indian roads. While quality of footpath is an obvious factor, it is found that traffic on the main carriageway also plays an important role in pedestrians' decisions to use the carriageway for walking, especially in heterogeneous traffic conditions. Present studies focus on the effect of traffic characteristics on this decision by pedestrians with a case study of an urban road located in New Delhi. Heterogeneous traffic conditions on the sample section have been measured by 'space-occupancy,' which is based on classified traffic volume count data. Data shows an increased percentage of walking on carriageways during the medium space-occupancy on carriageways compared to low and high space-occupancies. The significance of this behavioural difference has been verified through statistical tests. The reasons behind this could be the concerns of safety and comfort as safety is compromised during low space-occup...

Research paper thumbnail of Quantification of reduction in air pollution due to bypassing traffic in Delhi, India

The worldwide known relationship between transport and air pollution is demanding innovative solu... more The worldwide known relationship between transport and air pollution is demanding innovative solutions for satisfying the mobility needs with minimum pollution. While reducing the mobility demand is a longterm target, the most commonly adopted approach is to decongest the ‘hot spots’ having an alarming level of pollution. The main objective of providing bypasses and expressways is to divert the through traffic coming into the city. Delhi is one of the most congested and polluted cities in India. Among the various sources, vehicular pollution is a significant source of air pollution. Different policies and strategies have been developed to decongest and depollute Delhi. The Eastern Peripheral Expressway (EPE) is one such option implemented to decongest the national capital of India by diverting the traffic not destined for Delhi. It becomes essential to evaluate the performance of such significant infrastructural investments for better decision making in the future. Accordingly, the ...

Research paper thumbnail of Demand estimation for public transport systems-case study of Delhi

Since large sums of money and other scarce resources are invested in creating transport infrastru... more Since large sums of money and other scarce resources are invested in creating transport infrastructure, it is important to avoid projects, which fail to provide expected benefits. The aim of the present study is to develop a travel demand model for public and private transport modes, which can provide better estimates of travel demand. This study examines the demand of public transport trips, including the ongoing metro network in

Research paper thumbnail of Feeder connectivity for sustainable transportation systems

Research paper thumbnail of Estimating the Impact of Flyover on Vehicle Delay, Fuel Consumption, and Emissions—A Case Study

Road Over Bridges (ROB or flyover as it is popularly called in India) are considered as a solutio... more Road Over Bridges (ROB or flyover as it is popularly called in India) are considered as a solution to reduce the delay at an oversaturated at-grade signalized intersection. However, this provision of flyover remains a short-term solution, as it is seen that flyover also reaches to the same congestion level after a few years due to increased personalized vehicular traffic. To analyze the effect of a flyover over the years, vehicular delay, fuel consumption, and emission for the range of traffic volume are estimated. One intersection, Bhikaji Cama Place intersection in New Delhi, is considered as a case study. This is a four-legged signal-controlled intersection. Three scenarios are considered. Scenario A is the existing condition of flyover and signal phasing plan, Scenario B is with flyover and with proposed signal phasing plan, and Scenario C is without the flyover and proposed signal phasing plan. Scenario B includes comparison of alternate signal phasing plans to obtain the best ...