Paul Ossenbruggen - Academia.edu (original) (raw)

Papers by Paul Ossenbruggen

Research paper thumbnail of Urban Travel Demand Models with Competitive Modes

Transportation Engineering Journal of ASCE

The principles of microeconomics and consumer demand theory are utilized to form the mathematical... more The principles of microeconomics and consumer demand theory are utilized to form the mathematical structure of urban travel demand models. Competition between the automobile and four different public transportation mode options is considered. The automobile, which competes with ...

Research paper thumbnail of Discussion of “ Time Series Models for Treatment of Surface Waters ” by Paul J. Ossenbruggen (February, 1985, Vol. 111, No. 1)

Journal of Environmental Engineering, 1987

Research paper thumbnail of Techniques for Spatial Extrapolation of Wind Data

Journal of the Engineering Mechanics Division, 1980

The assessment of wind energy potential throughout a given region is usually difficult because of... more The assessment of wind energy potential throughout a given region is usually difficult because of the lack of a suitable data base. Typically, adequately long wind histories exist for only a relatively few regular wind measurement stations. This paper is concerned with the estimation of wind system parameters at a possible wind generation site, Y, by means of a short observed record at that site and extrapolation of a long term record at a regional weather station, X. The estimation is accomplished by assuming that the wind system at each site is generated by a common non-stationary process modified by site-specific scale factors and stationary noise processes. Elimination of the unknown non-stationary component leads to a representation of the wind record at Y in terms of the record at X and a stationary noise process. The procedure is exemplified using wind records from Boston Airport and the Boston light vessel.

Research paper thumbnail of Highway Safety Computer Simulation Exercises

Transportation engineering texts cover the topic of geometric design of highways but provide litt... more Transportation engineering texts cover the topic of geometric design of highways but provide little information on highway safety, vehicle crashworthiness, and occupant safety. The objective of this project is to develop exercises using interactive computer animation to more effectively teach highway safety in transportation engineering. With computer animation, the student can clearly visualize the harm done to the individual in an accident. In addition, model parameters can be quickly and easily changed to allow the student to investigate alternative accident scenarios and perform sensitivity analyses. Educational exercises were developed using the computer programs Working Model and Mathematica. Lecture material, class exercises, homework problems, and computer simulations on the following five areas are included in this report in a workbook format: Geometric design of a banked curve, occupant safety and head impact analysis, safe car following theory, hazardous highway identific...

Research paper thumbnail of Systems analysis for civil engineers

A systems analysis text which introduces fundamental methods of optimization, including graphical... more A systems analysis text which introduces fundamental methods of optimization, including graphical and numerical methods, and the principles of engineering economics to the planning, analysis, design, and management of civil engineering systems. Designed for undergraduates majoring in civil engineering. Includes practical problems.

Research paper thumbnail of An Example of Establishing a Plan to Mitigate Traffic Delay with Microscale Computer Simulated Data

Journal of transportation engineering, Aug 1, 2023

Research paper thumbnail of The Reliability of Treatment Systems

Water Forum '86: World Water Issues in Evolution, 1986

The purpose of this paper is to present the results of case studies of zero and first order react... more The purpose of this paper is to present the results of case studies of zero and first order reactor systems and an activated sludge treatment system consisting of a primary settling tank and a continuous flow stirred aeration tank reactor with recycle of cells from a secondary settling tank. The primary purpose is to demonstrate the use of probability based methods formulation for estimating process reliability for different treatment processes. Mass balance relationships were written to determine the interaction among variables. Unlike traditional design, random variables were introduced into the mass balance relationship and then substituted into the reliability function. The new function consists of a set of random variables associated with the variabilities-in-demand and treatment process noise and a set of control variables.

Research paper thumbnail of Closure to “Optimization of Urban Air Monitoring Networks”

Journal of the Environmental Engineering Division, Aug 1, 1975

Research paper thumbnail of Urban Travel Demand Models with Competitive Modes

Transportation Engineering Journal of ASCE, Aug 1, 1976

The principles of microeconomics and consumer demand theory are utilized to form the mathematical... more The principles of microeconomics and consumer demand theory are utilized to form the mathematical structure of urban travel demand models. Competition between the automobile and four different public transportation mode options is considered. The automobile, which competes with ...

Research paper thumbnail of Discussion of "Time Series Models for Treatment of Surface Waters

Journal of Environmental Engineering, Jun 1, 1987

Research paper thumbnail of Hazardous Roadway Identification Using Bayesian Data Analysis

Transportation Research Board 85th Annual MeetingTransportation Research Board, 2006

The identification "hazardous" roadways and presentation of evidence to support a recom... more The identification "hazardous" roadways and presentation of evidence to support a recommendation for treatment are elusive problems, especially for a roadway corridor where the traffic exposure is small. The addition or subtraction of a single fatality event can dramatically inflate or deflate the fatality rate making misclassification a strong possibility. Classical statistical methods for making inferences about fatality rates under this condition are ineffective. By incorporating a traffic safety standard or target, Bayesian data analysis for the calculation of failure probability -the probability of failing to meet the standard- an analytically-based method that reflects the uncertainties associated with identification and the decision to treat are brought into an objective, decision-making process. Simple and hierarchical Bayesian models are presented. Hierarchical models are preferred because they naturally pool information from data that are considered related. Observed or "raw" fatality and traffic exposure data from (1) local corridors are assumed to be samples from (2) corridors with similar roadway and roadside properties. A case study is presented to illustrate the approach.

Research paper thumbnail of Highway Safety Computer Simulation Exercises

Transportation engineering texts cover the topic of geometric design of highways but provide litt... more Transportation engineering texts cover the topic of geometric design of highways but provide little information on highway safety, vehicle crashworthiness, and occupant safety. The objective of this project is to develop exercises using interactive computer animation to more effectively teach highway safety in transportation engineering. With computer animation, the student can clearly visualize the harm done to the individual in an accident. In addition, model parameters can be quickly and easily changed to allow the student to investigate alternative accident scenarios and perform sensitivity analyses. Educational exercises were developed using the computer programs Working Model and Mathematica. Lecture material, class exercises, homework problems, and computer simulations on the following five areas are included in this report in a workbook format: Geometric design of a banked curve, occupant safety and head impact analysis, safe car following theory, hazardous highway identification, and queueing theory and merging dynamics.

Research paper thumbnail of Optimization and Dynamic Control of the Coagulation Process in Water Treatment

Research paper thumbnail of Closure to “Techniques for Spatial Extrapolation of Wind Data”

Journal of the Engineering Mechanics Division, Aug 1, 1981

Research paper thumbnail of Techniques for Spatial Extrapolation of Wind Data

Journal of the Engineering Mechanics Division, Apr 1, 1980

The assessment of wind energy potential throughout a given region is usually difficult because of... more The assessment of wind energy potential throughout a given region is usually difficult because of the lack of a suitable data base. Typically, adequately long wind histories exist for only a relatively few regular wind measurement stations. This paper is concerned with the estimation of wind system parameters at a possible wind generation site, Y, by means of a short observed record at that site and extrapolation of a long term record at a regional weather station, X. The estimation is accomplished by assuming that the wind system at each site is generated by a common non-stationary process modified by site-specific scale factors and stationary noise processes. Elimination of the unknown non-stationary component leads to a representation of the wind record at Y in terms of the record at X and a stationary noise process. The procedure is exemplified using wind records from Boston Airport and the Boston light vessel.

Research paper thumbnail of Using Shock Wave Theory to Predict Secondary Clarifier Performance

Abstract The operation and control of the secondary clarifier plays a very important role in the ... more Abstract The operation and control of the secondary clarifier plays a very important role in the overall performance of the activated sludge treatment process. Shock wave theory was used to investigate the effects of change in underflow velocity and change in applied flux on the sludge blanket height and its concentration profile.

Research paper thumbnail of Systems analysis for civil engineers

A systems analysis text which introduces fundamental methods of optimization, including graphical... more A systems analysis text which introduces fundamental methods of optimization, including graphical and numerical methods, and the principles of engineering economics to the planning, analysis, design, and management of civil engineering systems. Designed for undergraduates majoring in civil engineering. Includes practical problems.

Research paper thumbnail of Traffic Generated Noise Models

Transportation Engineering Journal of ASCE, 1977

In-situ noise level surveys have become an important part of environmental impact studies that ha... more In-situ noise level surveys have become an important part of environmental impact studies that have been prepared for proposed new and improved roadways. Since these studies are very costly, it is imperative that the engineer provide the client, the road user, and the taxpayer with information that will aid them in evaluating proposed improvements.

Research paper thumbnail of Single and Multi-Vehicle Crash Prediction Models for Two-Lane Roadways

Page 1. SINGLE AND MULTI-VEHICLE CRASH PREDICTION MODELS FOR TWO-LANE ROADWAYS Raghubhushan K. Pa... more Page 1. SINGLE AND MULTI-VEHICLE CRASH PREDICTION MODELS FOR TWO-LANE ROADWAYS Raghubhushan K. Pasupathy John N. Ivan Paul J. Ossenbruggen UNITED STATES DEPARTMENT OF TRANSPORTATION ...

Research paper thumbnail of A Car-Following Network Model: An Analysis of Trip Delay

Journal of Transportation Engineering, Part A: Systems

Research paper thumbnail of Urban Travel Demand Models with Competitive Modes

Transportation Engineering Journal of ASCE

The principles of microeconomics and consumer demand theory are utilized to form the mathematical... more The principles of microeconomics and consumer demand theory are utilized to form the mathematical structure of urban travel demand models. Competition between the automobile and four different public transportation mode options is considered. The automobile, which competes with ...

Research paper thumbnail of Discussion of “ Time Series Models for Treatment of Surface Waters ” by Paul J. Ossenbruggen (February, 1985, Vol. 111, No. 1)

Journal of Environmental Engineering, 1987

Research paper thumbnail of Techniques for Spatial Extrapolation of Wind Data

Journal of the Engineering Mechanics Division, 1980

The assessment of wind energy potential throughout a given region is usually difficult because of... more The assessment of wind energy potential throughout a given region is usually difficult because of the lack of a suitable data base. Typically, adequately long wind histories exist for only a relatively few regular wind measurement stations. This paper is concerned with the estimation of wind system parameters at a possible wind generation site, Y, by means of a short observed record at that site and extrapolation of a long term record at a regional weather station, X. The estimation is accomplished by assuming that the wind system at each site is generated by a common non-stationary process modified by site-specific scale factors and stationary noise processes. Elimination of the unknown non-stationary component leads to a representation of the wind record at Y in terms of the record at X and a stationary noise process. The procedure is exemplified using wind records from Boston Airport and the Boston light vessel.

Research paper thumbnail of Highway Safety Computer Simulation Exercises

Transportation engineering texts cover the topic of geometric design of highways but provide litt... more Transportation engineering texts cover the topic of geometric design of highways but provide little information on highway safety, vehicle crashworthiness, and occupant safety. The objective of this project is to develop exercises using interactive computer animation to more effectively teach highway safety in transportation engineering. With computer animation, the student can clearly visualize the harm done to the individual in an accident. In addition, model parameters can be quickly and easily changed to allow the student to investigate alternative accident scenarios and perform sensitivity analyses. Educational exercises were developed using the computer programs Working Model and Mathematica. Lecture material, class exercises, homework problems, and computer simulations on the following five areas are included in this report in a workbook format: Geometric design of a banked curve, occupant safety and head impact analysis, safe car following theory, hazardous highway identific...

Research paper thumbnail of Systems analysis for civil engineers

A systems analysis text which introduces fundamental methods of optimization, including graphical... more A systems analysis text which introduces fundamental methods of optimization, including graphical and numerical methods, and the principles of engineering economics to the planning, analysis, design, and management of civil engineering systems. Designed for undergraduates majoring in civil engineering. Includes practical problems.

Research paper thumbnail of An Example of Establishing a Plan to Mitigate Traffic Delay with Microscale Computer Simulated Data

Journal of transportation engineering, Aug 1, 2023

Research paper thumbnail of The Reliability of Treatment Systems

Water Forum '86: World Water Issues in Evolution, 1986

The purpose of this paper is to present the results of case studies of zero and first order react... more The purpose of this paper is to present the results of case studies of zero and first order reactor systems and an activated sludge treatment system consisting of a primary settling tank and a continuous flow stirred aeration tank reactor with recycle of cells from a secondary settling tank. The primary purpose is to demonstrate the use of probability based methods formulation for estimating process reliability for different treatment processes. Mass balance relationships were written to determine the interaction among variables. Unlike traditional design, random variables were introduced into the mass balance relationship and then substituted into the reliability function. The new function consists of a set of random variables associated with the variabilities-in-demand and treatment process noise and a set of control variables.

Research paper thumbnail of Closure to “Optimization of Urban Air Monitoring Networks”

Journal of the Environmental Engineering Division, Aug 1, 1975

Research paper thumbnail of Urban Travel Demand Models with Competitive Modes

Transportation Engineering Journal of ASCE, Aug 1, 1976

The principles of microeconomics and consumer demand theory are utilized to form the mathematical... more The principles of microeconomics and consumer demand theory are utilized to form the mathematical structure of urban travel demand models. Competition between the automobile and four different public transportation mode options is considered. The automobile, which competes with ...

Research paper thumbnail of Discussion of "Time Series Models for Treatment of Surface Waters

Journal of Environmental Engineering, Jun 1, 1987

Research paper thumbnail of Hazardous Roadway Identification Using Bayesian Data Analysis

Transportation Research Board 85th Annual MeetingTransportation Research Board, 2006

The identification "hazardous" roadways and presentation of evidence to support a recom... more The identification "hazardous" roadways and presentation of evidence to support a recommendation for treatment are elusive problems, especially for a roadway corridor where the traffic exposure is small. The addition or subtraction of a single fatality event can dramatically inflate or deflate the fatality rate making misclassification a strong possibility. Classical statistical methods for making inferences about fatality rates under this condition are ineffective. By incorporating a traffic safety standard or target, Bayesian data analysis for the calculation of failure probability -the probability of failing to meet the standard- an analytically-based method that reflects the uncertainties associated with identification and the decision to treat are brought into an objective, decision-making process. Simple and hierarchical Bayesian models are presented. Hierarchical models are preferred because they naturally pool information from data that are considered related. Observed or "raw" fatality and traffic exposure data from (1) local corridors are assumed to be samples from (2) corridors with similar roadway and roadside properties. A case study is presented to illustrate the approach.

Research paper thumbnail of Highway Safety Computer Simulation Exercises

Transportation engineering texts cover the topic of geometric design of highways but provide litt... more Transportation engineering texts cover the topic of geometric design of highways but provide little information on highway safety, vehicle crashworthiness, and occupant safety. The objective of this project is to develop exercises using interactive computer animation to more effectively teach highway safety in transportation engineering. With computer animation, the student can clearly visualize the harm done to the individual in an accident. In addition, model parameters can be quickly and easily changed to allow the student to investigate alternative accident scenarios and perform sensitivity analyses. Educational exercises were developed using the computer programs Working Model and Mathematica. Lecture material, class exercises, homework problems, and computer simulations on the following five areas are included in this report in a workbook format: Geometric design of a banked curve, occupant safety and head impact analysis, safe car following theory, hazardous highway identification, and queueing theory and merging dynamics.

Research paper thumbnail of Optimization and Dynamic Control of the Coagulation Process in Water Treatment

Research paper thumbnail of Closure to “Techniques for Spatial Extrapolation of Wind Data”

Journal of the Engineering Mechanics Division, Aug 1, 1981

Research paper thumbnail of Techniques for Spatial Extrapolation of Wind Data

Journal of the Engineering Mechanics Division, Apr 1, 1980

The assessment of wind energy potential throughout a given region is usually difficult because of... more The assessment of wind energy potential throughout a given region is usually difficult because of the lack of a suitable data base. Typically, adequately long wind histories exist for only a relatively few regular wind measurement stations. This paper is concerned with the estimation of wind system parameters at a possible wind generation site, Y, by means of a short observed record at that site and extrapolation of a long term record at a regional weather station, X. The estimation is accomplished by assuming that the wind system at each site is generated by a common non-stationary process modified by site-specific scale factors and stationary noise processes. Elimination of the unknown non-stationary component leads to a representation of the wind record at Y in terms of the record at X and a stationary noise process. The procedure is exemplified using wind records from Boston Airport and the Boston light vessel.

Research paper thumbnail of Using Shock Wave Theory to Predict Secondary Clarifier Performance

Abstract The operation and control of the secondary clarifier plays a very important role in the ... more Abstract The operation and control of the secondary clarifier plays a very important role in the overall performance of the activated sludge treatment process. Shock wave theory was used to investigate the effects of change in underflow velocity and change in applied flux on the sludge blanket height and its concentration profile.

Research paper thumbnail of Systems analysis for civil engineers

A systems analysis text which introduces fundamental methods of optimization, including graphical... more A systems analysis text which introduces fundamental methods of optimization, including graphical and numerical methods, and the principles of engineering economics to the planning, analysis, design, and management of civil engineering systems. Designed for undergraduates majoring in civil engineering. Includes practical problems.

Research paper thumbnail of Traffic Generated Noise Models

Transportation Engineering Journal of ASCE, 1977

In-situ noise level surveys have become an important part of environmental impact studies that ha... more In-situ noise level surveys have become an important part of environmental impact studies that have been prepared for proposed new and improved roadways. Since these studies are very costly, it is imperative that the engineer provide the client, the road user, and the taxpayer with information that will aid them in evaluating proposed improvements.

Research paper thumbnail of Single and Multi-Vehicle Crash Prediction Models for Two-Lane Roadways

Page 1. SINGLE AND MULTI-VEHICLE CRASH PREDICTION MODELS FOR TWO-LANE ROADWAYS Raghubhushan K. Pa... more Page 1. SINGLE AND MULTI-VEHICLE CRASH PREDICTION MODELS FOR TWO-LANE ROADWAYS Raghubhushan K. Pasupathy John N. Ivan Paul J. Ossenbruggen UNITED STATES DEPARTMENT OF TRANSPORTATION ...

Research paper thumbnail of A Car-Following Network Model: An Analysis of Trip Delay

Journal of Transportation Engineering, Part A: Systems