The Experts below are selected from a list of 21063 Experts worldwide ranked by ideXlab platform
Richard L. Schmoyer - One of the best experts on this subject based on the ideXlab platform.
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Transferability of Nationwide Personal Transportation Survey Data to Regional and Local Scales
Transportation Research Record, 2002Co-Authors: Timothy Reuscher, Richard L. SchmoyerAbstract:The development of a system for using Nationwide Personal Transportation Survey (NPTS) data to estimate regional or local travel behavior—vehicle and person trips and miles of travel—is detailed. This system can be used by state or municipal Transportation planners. The census tracts were classified into groups, or clusters, that tend to be homogeneous for individual travel behavior. These census tract clusters were based on household income, employment rate, number of household vehicles, and area type (urban, suburban, or rural). NPTS data were used to estimate driving characteristics for each of the clusters derived in the classification step. How well the goal of estimating regional or local travel characteristics was achieved by using standards computed from an independent survey from Baton Rouge, Louisiana, and by using independent data from three add-on components of the NPTS itself was assessed. Estimates computed from the NPTS data by using the census tract cluster method were compared with estima...
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Transferability of Nationwide Personal Transportation Survey Data to Regional and Local Scales
Transportation Research Record: Journal of the Transportation Research Board, 2002Co-Authors: Timothy Reuscher, Richard L. SchmoyerAbstract:The development of a system for using Nationwide Personal Transportation Survey (NPTS) data to estimate regional or local travel behavior—vehicle and person trips and miles of travel—is detailed. This system can be used by state or municipal Transportation planners. The census tracts were classified into groups, or clusters, that tend to be homogeneous for individual travel behavior. These census tract clusters were based on household income, employment rate, number of household vehicles, and area type (urban, suburban, or rural). NPTS data were used to estimate driving characteristics for each of the clusters derived in the classification step. How well the goal of estimating regional or local travel characteristics was achieved by using standards computed from an independent survey from Baton Rouge, Louisiana, and by using independent data from three add-on components of the NPTS itself was assessed. Estimates computed from the NPTS data by using the census tract cluster method were compared with estimates computed from the standards and with estimates computed from the NPTS data by using competing methods in which households were classified by size of the metropolitan statistical area, census division, or census region. It was found that in most cases the census tract clustering method predicted travel better than the other methods, with small sample sizes generally being the cause when the census tract method was not the best.
Joel R Rey - One of the best experts on this subject based on the ideXlab platform.
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Mode Choice by People of Color for Non-Work Travel
2000Co-Authors: Xuehao Chu, Steven E Polzin, Joel R Rey, Eric T HillAbstract:This chapter provides a comprehensive picture of mode choice by people of color for their non-work travel. This mode choice analysis relies on the 1983, 1990, and 1995 Nationwide Personal Transportation Survey (NPTS) of U.S. Personal travel.
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DENSITY AND CAPTIVITY IN PUBLIC TRANSIT SUCCESS: OBSERVATIONS FROM THE 1995 NATIONWIDE Personal Transportation STUDY
Transportation Research Record, 2000Co-Authors: Steven E Polzin, Xuehao Chu, Joel R ReyAbstract:The new millennium provides a good time to reflect on Transportation-industry trends in some fundamental external factors that influence Transportation behavior and planning response. In the public-transit industry, urban density and transit captivity have long been fundamental conditions driving transit planning and service and facility investment decisions. In light of demographic and economic changes, it is useful to revisit the issue of the importance of these factors to the transit market. Findings from a comprehensive analysis of the 1995 Nation-wide Personal Transportation Study (NPTS), which explored current transit-travel behavior, are reported. Two key findings reflect on two historical axioms in transit: (a) the extent to which density influences transit use and (b) the importance of the transit-dependent market. The research findings reiterate the significant influence that development density has on public transit mode share and bring to light some revealing data on the influence of urban-are...
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Density and Captivity in Public Transit Success: Observations from the 1995 Nationwide Personal Transportation Study
Transportation Research Record: Journal of the Transportation Research Board, 2000Co-Authors: Steven E Polzin, Xuehao Chu, Joel R ReyAbstract:The new millennium provides a good time to reflect on Transportation-industry trends in some fundamental external factors that influence Transportation behavior and planning response. In the public-transit industry, urban density and transit captivity have long been fundamental conditions driving transit planning and service and facility investment decisions. In light of demographic and economic changes, it is useful to revisit the issue of the importance of these factors to the transit market. Findings from a comprehensive analysis of the 1995 Nation-wide Personal Transportation Study (NPTS), which explored current transit-travel behavior, are reported. Two key findings reflect on two historical axioms in transit: ( a) the extent to which density influences transit use and ( b) the importance of the transit-dependent market. The research findings reiterate the significant influence that development density has on public transit mode share and bring to light some revealing data on the influence of urban-area size on transit use. The importance of transit dependency on transit use is documented, and trends in transit dependency over the past few decades are revealed. Finally, the implications of these trends for the public-transit industry are discussed.
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Public transit in America: Findings from the 1995 nationwide Personal Transportation survey
1998Co-Authors: Steven E Polzin, Joel R Rey, Xuehao ChuAbstract:This report has been prepared as an information base for people involved in planning, operating, marketing, and decision making for public transit. It characterizes public transit as it is today from a number of perspectives that are believed to be useful to their professional activities. The scale of analysis is limited to the 1995 NPTS, which includes a number of enhancements to the survey content and method and the resulting database over previous surveys. The most notable enhancements include the addition of questions on public attitudes about Transportation, the change from recollection to travel diary for trip recording, and the addition of characteristics for both residential and employment sites. The scale of analysis is also limited to the addition of characteristics for both residential and employment sites. The scale of analysis is also limited to describing various aspects of transit markets, rather than explaining the causality of various relationships observed. The scope of analysis is limited to the following 8 perspectives of characterizing public transit: 1) public attitudes about public transit; 2) perceived availability and proximity of public transit; 3) extent of transferring; 4) perceived characteristics of public transit trips (distance, travel time, speed, and waiting time); 5) public transit's market shares; 6) public transit's sub-markets; 7) propensity for transit use by people who perceive public transit to be available to them; and 8) public transit's market penetration. Statistics provided on these perspectives complement those from other sources on transit at the national level, such as the decennial censuses from the U.S. Bureau of the Census, the American Housing Survey from the Department of Housing and Urban Development, or the National Transit Data Base from the Federal Transit Administration.
Steven E Polzin - One of the best experts on this subject based on the ideXlab platform.
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Mode Choice by People of Color for Non-Work Travel
2000Co-Authors: Xuehao Chu, Steven E Polzin, Joel R Rey, Eric T HillAbstract:This chapter provides a comprehensive picture of mode choice by people of color for their non-work travel. This mode choice analysis relies on the 1983, 1990, and 1995 Nationwide Personal Transportation Survey (NPTS) of U.S. Personal travel.
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DENSITY AND CAPTIVITY IN PUBLIC TRANSIT SUCCESS: OBSERVATIONS FROM THE 1995 NATIONWIDE Personal Transportation STUDY
Transportation Research Record, 2000Co-Authors: Steven E Polzin, Xuehao Chu, Joel R ReyAbstract:The new millennium provides a good time to reflect on Transportation-industry trends in some fundamental external factors that influence Transportation behavior and planning response. In the public-transit industry, urban density and transit captivity have long been fundamental conditions driving transit planning and service and facility investment decisions. In light of demographic and economic changes, it is useful to revisit the issue of the importance of these factors to the transit market. Findings from a comprehensive analysis of the 1995 Nation-wide Personal Transportation Study (NPTS), which explored current transit-travel behavior, are reported. Two key findings reflect on two historical axioms in transit: (a) the extent to which density influences transit use and (b) the importance of the transit-dependent market. The research findings reiterate the significant influence that development density has on public transit mode share and bring to light some revealing data on the influence of urban-are...
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Density and Captivity in Public Transit Success: Observations from the 1995 Nationwide Personal Transportation Study
Transportation Research Record: Journal of the Transportation Research Board, 2000Co-Authors: Steven E Polzin, Xuehao Chu, Joel R ReyAbstract:The new millennium provides a good time to reflect on Transportation-industry trends in some fundamental external factors that influence Transportation behavior and planning response. In the public-transit industry, urban density and transit captivity have long been fundamental conditions driving transit planning and service and facility investment decisions. In light of demographic and economic changes, it is useful to revisit the issue of the importance of these factors to the transit market. Findings from a comprehensive analysis of the 1995 Nation-wide Personal Transportation Study (NPTS), which explored current transit-travel behavior, are reported. Two key findings reflect on two historical axioms in transit: ( a) the extent to which density influences transit use and ( b) the importance of the transit-dependent market. The research findings reiterate the significant influence that development density has on public transit mode share and bring to light some revealing data on the influence of urban-area size on transit use. The importance of transit dependency on transit use is documented, and trends in transit dependency over the past few decades are revealed. Finally, the implications of these trends for the public-transit industry are discussed.
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Public transit in America: Findings from the 1995 nationwide Personal Transportation survey
1998Co-Authors: Steven E Polzin, Joel R Rey, Xuehao ChuAbstract:This report has been prepared as an information base for people involved in planning, operating, marketing, and decision making for public transit. It characterizes public transit as it is today from a number of perspectives that are believed to be useful to their professional activities. The scale of analysis is limited to the 1995 NPTS, which includes a number of enhancements to the survey content and method and the resulting database over previous surveys. The most notable enhancements include the addition of questions on public attitudes about Transportation, the change from recollection to travel diary for trip recording, and the addition of characteristics for both residential and employment sites. The scale of analysis is also limited to the addition of characteristics for both residential and employment sites. The scale of analysis is also limited to describing various aspects of transit markets, rather than explaining the causality of various relationships observed. The scope of analysis is limited to the following 8 perspectives of characterizing public transit: 1) public attitudes about public transit; 2) perceived availability and proximity of public transit; 3) extent of transferring; 4) perceived characteristics of public transit trips (distance, travel time, speed, and waiting time); 5) public transit's market shares; 6) public transit's sub-markets; 7) propensity for transit use by people who perceive public transit to be available to them; and 8) public transit's market penetration. Statistics provided on these perspectives complement those from other sources on transit at the national level, such as the decennial censuses from the U.S. Bureau of the Census, the American Housing Survey from the Department of Housing and Urban Development, or the National Transit Data Base from the Federal Transit Administration.
Timothy Reuscher - One of the best experts on this subject based on the ideXlab platform.
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Transferability of Nationwide Personal Transportation Survey Data to Regional and Local Scales
Transportation Research Record, 2002Co-Authors: Timothy Reuscher, Richard L. SchmoyerAbstract:The development of a system for using Nationwide Personal Transportation Survey (NPTS) data to estimate regional or local travel behavior—vehicle and person trips and miles of travel—is detailed. This system can be used by state or municipal Transportation planners. The census tracts were classified into groups, or clusters, that tend to be homogeneous for individual travel behavior. These census tract clusters were based on household income, employment rate, number of household vehicles, and area type (urban, suburban, or rural). NPTS data were used to estimate driving characteristics for each of the clusters derived in the classification step. How well the goal of estimating regional or local travel characteristics was achieved by using standards computed from an independent survey from Baton Rouge, Louisiana, and by using independent data from three add-on components of the NPTS itself was assessed. Estimates computed from the NPTS data by using the census tract cluster method were compared with estima...
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Transferability of Nationwide Personal Transportation Survey Data to Regional and Local Scales
Transportation Research Record: Journal of the Transportation Research Board, 2002Co-Authors: Timothy Reuscher, Richard L. SchmoyerAbstract:The development of a system for using Nationwide Personal Transportation Survey (NPTS) data to estimate regional or local travel behavior—vehicle and person trips and miles of travel—is detailed. This system can be used by state or municipal Transportation planners. The census tracts were classified into groups, or clusters, that tend to be homogeneous for individual travel behavior. These census tract clusters were based on household income, employment rate, number of household vehicles, and area type (urban, suburban, or rural). NPTS data were used to estimate driving characteristics for each of the clusters derived in the classification step. How well the goal of estimating regional or local travel characteristics was achieved by using standards computed from an independent survey from Baton Rouge, Louisiana, and by using independent data from three add-on components of the NPTS itself was assessed. Estimates computed from the NPTS data by using the census tract cluster method were compared with estimates computed from the standards and with estimates computed from the NPTS data by using competing methods in which households were classified by size of the metropolitan statistical area, census division, or census region. It was found that in most cases the census tract clustering method predicted travel better than the other methods, with small sample sizes generally being the cause when the census tract method was not the best.
C. A. Amann - One of the best experts on this subject based on the ideXlab platform.
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PRIVATE VEHICLES FOR Personal Transportation
International Journal of Vehicle Design, 2014Co-Authors: C. A. AmannAbstract:In the United States, private Personal Transportation has became dominated by the automobile, a platform supported on four wheels and propelled by an internal combustion engine (ICE). Some of the reasons why this combination has emerged as the preferred choice are reviewed. Since urban air quality has become an issue, the ICE has kept pace with progressively more stringent exhaust–emissions regulations. Future emissions standards will encourage the use of alternative fuels and battery–electric propulsion. Looking far into the future, the depletion of fossil–fuel resources and/or definitive evidence that the greenhouse gases are actually changing the global climate would foster a shift toward nuclear and solar energy. The automobile platform is compatible with such a shift. The ICE and the electric motor remain as potential motive sources, although they would face some difficult challenges.
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Private vehicles for Personal Transportation
Journal of Engineering for Gas Turbines and Power, 1993Co-Authors: C. A. AmannAbstract:In the United States, private Personal Transportation has become dominated by the automobile, a platform supported on four wheels and propelled by an internal combustion engine (ICE). Some of the reasons why this combination has emerged as the preferred choice are reviewed. Since urban air quality has become an issue, the ICE has kept pace with progressively more stringent exhaust-emissions regulations. Future emissions standards will encourage the use of alternative fuels and battery-electric propulsion. Looking far into the future, the depletion of fossil-fuel resources and/or definitive evidence that greenhouse gases are actually changing the global climate would foster a shift toward nuclear and solar energy. The automobile platform is compatible with such a shift. The ICE and the electric motor remain as potential motive sources, although they would face some difficult challenges.
