Author: William C. TaylorPublisher:
ISBN:
Category :
Languages : en
Pages : 106
Book Description
Analysis of Speed Zoning Effectiveness. Final Report
Author: William C. TaylorManaging Speed
Author: Publisher: Transportation Research Board
ISBN: 9780309065023
Category : Business & Economics
Languages : en
Pages : 444
Book Description
TRB Special Report 254 - Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits reviews practices for setting and enforcing speed limits on all types of roads and provides guidance to state and local governments on appropriate methods of setting speed limits and related enforcement strategies. Following an executive summary, the report is presented in six chapters and five appendices.
Speed Management
Author: European Conference of Ministers of TransportPublisher: OECD Publishing
ISBN:
Category :
Languages : en
Pages : 296
Book Description
This Report addresses the key issues surrounding traffic speed management and highlights the improvements in policy and operations needed to reduce the extent of speeding.
Design Guidance for High-speed to Low-speed Transition Zones for Rural Highways
Author: Darren J. TorbicPublisher: Transportation Research Board
ISBN: 030925874X
Category : Technology & Engineering
Languages : en
Pages : 98
Book Description
"TRBs National Cooperative Highway Research Program (NCHRP) Report 737: Design Guidance for High-Speed to Low-Speed Transitions Zones for Rural Highways presents guidance for designing the transition from a high-speed rural highway to a lower-speed section, typically approaching a small town. The report includes a methodology for assessing these highway sections and a catalog of potential treatments for addressing problems."--Publisher's description.
Compendium of Technical Papers
Author: Institute of Transportation Engineers. MeetingPublisher:
ISBN:
Category : Traffic engineering
Languages : en
Pages : 488
Book Description
Effective Experiment Design and Data Analysis in Transportation Research
Author: Publisher: Transportation Research Board
ISBN: 0309258499
Category : Experimental design
Languages : en
Pages : 89
Book Description
This report describes the factors that should be considered in designing experiments and presents 21 typical transportation examples illustrating the experiment design process, including selection of appropriate statistical tests. The examples encompass a wide range of transportation disciplines and statistical methods. This report will be very beneficial to anyone with limited research experience needing to answer a question based on data (e.g., presenting ozone concentrations in a region, determining whether a contractor's quality assurance/quality control procedures are adequate, estimating the effect of automated enforcement on speeds, monitoring trends in the condition of bridge superstructures, developing a user survey to determine the impact of transit fare changes). The report is a companion to NCHRP CD-22, Scientific Approaches to Transportation Research, Volumes 1 and 2, which were developed in NCHRP Project 20-45 and present detailed information on statistical methods.
Speed Zone Guidelines Using Roadway Characteristics and Area Development
Author: Robert W. StokesPublisher:
ISBN:
Category : Neural networks (Computer science).
Languages : en
Pages : 88
Book Description
The objective of this study was to quantify effects that selected characteristics and adjacent development patterns have on roadway speeds. Based on the results of a literature search and the availability of data for Kansas highways, twenty-seven variables were identified as possibly affecting speeds on rural state highways and thirty-two variables were identified as possibly affecting speeds on urban state highways. Speed data and data for the potential explanatory variables were collected for a total of 539 sections of state highway (186 rural and 353 urban sections). Two approaches were used to develop and test models to predict speeds on rural and urban state highways based on roadway characteristics and adjacent development patterns. The first approach was based on models in the form of multiple linear regression equations. The second approach employed artificial neural networks (ANNs) to predict highway speeds. None of the regression models were entirely satisfactory in terms of their ability to predict the 85th percentile speeds on rural and urban highways within +/-5 mph (+/-8 km/h). A number of regression models are presented, however, they should be used with caution. Two independent databases were used to train two sets of ANN models of rural and urban speeds. The first set of ANN models (Stage 1) was developed using the same data used in the regression analysis. The second set of ANN models (Stage 2) was developed using a database provided by the Kansas Department of Transportation (KDOT) Bureau of Traffic Engineering. The second database contained only those variables that KDOT believed drivers consider in selecting a driving speed. Overall, the Stage 2 ANN models developed in this study were found to perform much better than either the Stage 1 ANN models or the regression models in predicting rural and urban highway speeds.
Guidelines for Selection of Speed Reduction Treatments at High-speed Intersections
Author: Brian RayPublisher: Transportation Research Board
ISBN: 0309099358
Category : Technology & Engineering
Languages : en
Pages : 110
Book Description
TRB¿s National Cooperative Highway Research Program (NCHRP) Report 613: Guidelines for Selection of Speed Reduction Treatments at High-Speed Intersections explores the effectiveness of geometric design features as well as signage and pavement markings to reduce vehicle speeds at high-speed intersections.
Highway Research and Development Studies Using Federal-aid Research and Planning Funds
Author: Effectiveness of Double Fines as a Speed Control Measure in Safety Corridors
Author: Barnie JonesPublisher:
ISBN:
Category : Automobile drivers
Languages : en
Pages : 76
Book Description