Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 2161-2180 of 4147
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Practical Solution Concepts for Planning and Designing Roadways
(American Society of Civil Engineers, 2010)Developing a procedure that yields up to the maximum margin of return for the investment requires an approach that takes into account specific safety issues and the commensurate design elements for each roadway. Kentucky’s ... -
Data Analysis Techniques for GPR Used for Assessing Railroad Ballast in High Radio-Frequency Environment
(American Society of Civil Engineers, 2010)Railroad ballast supports heavy rail loading, prevents track deformation, and provides drainage of water from the track structure. However, over time, ballast is fouled by the breakdown of ballast aggregate and/or the ... -
Evaluation of the Use of Reclaimed Asphalt Pavement in Airfield HMA Pavements
(American Society of Civil Engineers, 2010)This paper summarizes the literature review as well as the documented use and performance of airfield pavements that used reclaimed asphalt pavement (RAP) in hot-mix asphalt (HMA). A review of in-service airfield pavements ... -
Influence of Nonlinearity on the Stress Distribution in the Soil—Application to Road Engineering Problems
(American Society of Civil Engineers, 2010)The Boussinesq theory for the distribution of stresses in a half-space resulting from surface loads is largely used in road engineering. It is based on the assumption of linear-elastic homogeneous isotropic half-space for ... -
VCI, a Regional Volume/Capacity Index Model of Urban Congestion
(American Society of Civil Engineers, 2010)This paper proposes a simple model of -
Investigation of Violation Reduction at Intersection Approaches with Automated Red Light Running Enforcement Cameras in Clive, Iowa, Using a Cross-Sectional Analysis
(American Society of Civil Engineers, 2009)Red light running causes more than 100,000 crashes and 1,000 fatalities annually and results in an estimated economic loss of over $14 billion per year in the United States. Red light running is a significant safety issue ... -
Effects of Controlling Parameters on Performance of a Decision-Rule Map-Matching Algorithm
(American Society of Civil Engineers, 2009)Advanced map-matching algorithms resolve spatial ambiguities between differential global positioning system (DGPS) and roadway centerline data. Most of these algorithms need further research to assess their performances ... -
Closed-Form Solutions for Bimodal Axle Load Spectra and Relative Pavement Damage Estimation
(American Society of Civil Engineers, 2009)The mechanistic-empirical (ME) design procedures utilize axle load spectra to characterize the individual traffic loadings for a site. These loading characteristics are employed to calculate pavement response and for ... -
Community-Based, Macrolevel Collision Prediction Model Use with a Regional Transportation Plan
(American Society of Civil Engineers, 2010)This paper describes the application of previously developed community-based, macrolevel collision prediction models (CPMs) to evaluate the road safety of a regional transportation plan. The research objective was to present ... -
Life-Cycle Cost Analysis of Highway Intersection Safety Hardware Improvements
(American Society of Civil Engineers, 2010)A methodology is proposed for project-level life-cycle cost analysis of highway intersection safety hardware improvements. It incorporates a disaggregated risk-based approach for computing the safety index that could be ... -
Vision-Based Roadway Geometry Computation
(American Society of Civil Engineers, 2010)Geometric data in transportation, such as roadway geometry, are important for asset management and for safety analysis. Traditional roadway geometric data are measured in the field, which is time consuming, costly, and ... -
Differences in Off-Road Glances: Effects on Young Drivers’ Performance
(American Society of Civil Engineers, 2010)Young drivers display more risk-taking behavior than other age groups. Performing distracting tasks is one such risky behavior that is observed among young drivers. However, due to inexperience, young drivers may not be ... -
Systematic Framework for Incorporating Safety in Network-Level Transportation Planning and Programming
(American Society of Civil Engineers, 2010)Transportation agencies worldwide increasingly seek to abandon reactive approaches for safety enhancement in favor of approaches that incorporate safety in their transportation planning processes in a proactive, comprehensive, ... -
Including Minor Modes of Transport in a Tour-Based Mode Choice Model with Household Interactions
(American Society of Civil Engineers, 2009)Mode choice models used for travel demand forecasting generally include “major” transportation modes of driving, ridesharing, walking, and riding public transit. In the Toronto Area, these make up 96% of all trips. This ... -
Impact of Phase Scheme on Development and Performance of a Logic Rule-Based Bus Rapid Transit Signal Priority
(American Society of Civil Engineers, 2009)Focusing on isolated signalized intersections with four approaches along arterial median busway, a logic rule-based bus rapid transit signal priority (BRTSP), aiming to speed up bus rapid transit (BRT) service with less ... -
Kalman Filter Approach to Speed Estimation Using Single Loop Detector Measurements under Congested Conditions
(American Society of Civil Engineers, 2009)The ability to measure or estimate accurate speed data are of great importance to a large number of transportation system operations applications. Estimating speeds from the widely used single inductive loop sensor has ... -
Roads Performance Modeling and Management System from Two Condition Data Points: Case Study of Costa Rica
(American Society of Civil Engineers, 2009)Initial implementation of a road management system will typically face the challenge of a lack of time-series data for performance modeling. This paper presents one approach for developing initial performance prediction ... -
Data Envelopment Analysis as a Decision-Making Tool for Transportation Professionals
(American Society of Civil Engineers, 2009)Data envelopment analysis (DEA) is a mathematical method based on production theory and the principles of linear programming. It enables one to assess how efficiently a firm, organization, agency, or such other unit uses ... -
Zero-Radius Bend Method to Trigger Lateral Buckles
(American Society of Civil Engineers, 2009)By deliberately triggering lateral buckles in a subsea pipeline at a sufficiently low axial load, one can ensure that the distance between lateral buckles is sufficiently small, so that the thermal expansion to be absorbed ... -
Traffic Modeling and College-Bus Routing Using Entropy Maximization
(American Society of Civil Engineers, 2010)A method is presented by which traffic flow estimation between known origins and destinations can be evaluated based on a modified entropy model, and by which bus-routing optimization can be performed. The traffic flow ...