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Book Vehicle Miles of Travel VMT Survey Methodology

Download or read book Vehicle Miles of Travel VMT Survey Methodology written by Juliette Ellis and published by . This book was released on 1977 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Vehicle miles of Travel Statistics Lifetime Vehicle miles of Travel and Current State Methods of Estimating Vehicle miles of Travel

Download or read book Vehicle miles of Travel Statistics Lifetime Vehicle miles of Travel and Current State Methods of Estimating Vehicle miles of Travel written by David Lloyd Greene and published by . This book was released on 1979 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Study Design for a Method of Projecting Vehicle Miles of Travel

Download or read book Study Design for a Method of Projecting Vehicle Miles of Travel written by F. T. Rabe and published by . This book was released on 1977 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Study Design for a Method of Projecting Vehicle Miles Travel Final Report

Download or read book Study Design for a Method of Projecting Vehicle Miles Travel Final Report written by F. T. Rabe and published by . This book was released on 1977 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Summary of Travel Trends

Download or read book Summary of Travel Trends written by Patricia S. Hu and published by . This book was released on 1999 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Dept. of Transport. (DoT) Strategic Plan for FY 1997-2002 identifies 5 performance goals: safety, mobility, econ. growth & trade, human & natural environ., & nat. security. DoT conducts the NPTS to obtain info. on personal travel of U.S. households with respect to why, how, when, where from, where to, how frequently, how long, & with whom. The NPTS also provides info. by subgroups of the pop., e.g., by age, gender, race, zero-vehicle households, which allows important policy analyses of how transport. serves these groups. This report provides the results of the 1995 NPTS of travel by the civilian, non-institutionalized pop. age 5 & older.

Book Estimation and Prediction of Statewide Vehicle Miles Traveled VMT by Highway Category and Vehicle Classification

Download or read book Estimation and Prediction of Statewide Vehicle Miles Traveled VMT by Highway Category and Vehicle Classification written by Trevor Klatko and published by . This book was released on 2016-12-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Vehicle Miles Traveled (VMT) is a critical measure of highway system performance used extensively in highway transportation management not only for reporting to oversight agencies such as the FHWA but also as an input for financial analysis, resource allocation, and impact assessments. In the current era as highway revenue from fuel taxes continues to fall and direct user charging such as VMT fees become increasingly attractive, consistent and reliable VMT estimates have become critical for evaluating highway funding options. In the current practice at most highway agencies including the Indiana DOT, there exists several alternative methods for VMT estimation that typically yield a spectrum of estimates that are inconsistent and for certain methods, even inaccurate. This study was commissioned by the Indiana Department of Transportation (INDOT) to develop a benchmark method for VMT estimation and to provide calibration factors for adjusting the VMT estimates derived from the other VMT estimation methods. The benchmark method used in this study was a segment-level framework that decomposes the entire road inventory into links and for each link, determining the product of the traffic volume and the inventory length. For the state highway system, the entire population was used; a comprehensive database was developed which facilitates extensive aggregations of VMT by geographical scope, route, functional class, and vehicle class. For the local roads, a sample of counties of different spatial locations and degrees of urbanization were used, and cluster analysis, geographic information systems (GIS), and spatial interpolation techniques were used to expand the VMT estimates from the local road samples to the population of all counties in the state. The results of this study indicate that there is significant variation, with respect to the benchmark method, of the VMT estimates of the other estimation methods. An implementation platform was developed in this study to produce outcomes that address the VMT data needs of the intended end users and stakeholders; this can be expanded to include new roads in future. It was determined that the current statewide VMT (2013) is 78 billion vehicle-miles, which is expected to grow to 95 billion vehicle miles in 2035.

Book Evaluation of Methodology for Determining Truck Vehicle Miles Traveled in Illinois

Download or read book Evaluation of Methodology for Determining Truck Vehicle Miles Traveled in Illinois written by R. F. Benekohal and published by . This book was released on 2002 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nationwide surveys of departments of transportation, metropolitan planning organizations, and classification vendors/producers were conducted to determine the state of practice on equipment and methodologies used to determine truck vehicle miles traveled (VMT). The current Illinois Department of Transportation (IDOT) methodology was evaluated and it was found that it overestimated truck VMT for multi-unit trucks on all eight functional classes except on the minor urban arterials. The average overestimation was 11.5% and it varied from -10% to +44%. The current method overestimated truck VMT for single-unit trucks in five and underestimated in three functional classes. The under/over estimation ranged from -6% to +35%, but the average value was close to zero. To calculate truck VMT more accurately, this study proposed two different methods based on average truck percentage (ATP) and average section length (ASL). In the ATP method, truck VMT is calculated by multiplying the ATP for a group of roadway sections by the total VMT of that group. The ATP method should be used when the ATP and the total VMT by volume groups are available. In the ASL method, the total truck volume for the sampled sections is multiplied by the ASL. The ASL method should be used when the information required for ATP is not available or not reliable. Sample size influences the accuracy of truck VMT estimation and the decision on sample size must consider the error level that is acceptable. This study looked at the likely error for different sample sizes and recommended using 8% to 16% of the number of roadway sections. The sections should be distributed among the volume groups. Recently, IDOT collects vehicle classification data for three categories at about 10,000 sections, biennially. It is recommended to evaluate the truck VMT calculation using recent data.

Book Methods for Household Travel Surveys

Download or read book Methods for Household Travel Surveys written by Peter R. Stopher and published by Transportation Research Board. This book was released on 1996 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This synthesis will be of interest to planning, administrative, and traffic officials in state transportation agencies and in metropolitan planning organizations (MPOs); to consultants concerned with the design and conduct of surveys; and to those engaged in developing and applying travel forecasting models. It describes the various facets of planning, designing, conducting, and evaluating household travel surveys. This report of the Transportation Research Board provides information on the manner in which many household surveys are currently carried out and provides comment on the likely changes in the process, in the survey instrument, and in the application of more cost-effective methods of data collection in household travel surveys. This synthesis describes the methods for collection, including survey instrument design, as well as testing and administering the surveys. Information on time and cost requirements is also included, as are descriptions of evaluation and data analysis methods.

Book Transportation Energy Data Book

Download or read book Transportation Energy Data Book written by and published by . This book was released on 2005 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Evaluation of Urban Travel Survey Methodologies

Download or read book Evaluation of Urban Travel Survey Methodologies written by David F. Pearson and published by . This book was released on 1994 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report documents the evaluation of the methodologies used in the travel surveys done in five urban areas in Texas in 1990 and 1991. Based on those evaluations, specific recommendations are made in the areas of sample size estimation, survey methodologies, data specifications, survey instruments, etc. Surveys evaluated include household surveys, workplace surveys, special generator surveys, external station surveys, and truck surveys. Several travel data gaps are also identified where current survey efforts are not sufficient in terms of providing data for their estimation of modeling.

Book Vehicle Miles of Travel

Download or read book Vehicle Miles of Travel written by Kenneth W. Shiatte and published by . This book was released on 1963 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Development of Urban Travel Monitoring Methods

Download or read book Development of Urban Travel Monitoring Methods written by and published by . This book was released on 1981 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: