Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 1601-1620 of 4147
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Traffic Flow Forecasting: Comparison of Modeling Approaches
(American Society of Civil Engineers, 1997)The capability to forecast traffic volume in an operational setting has been identified as a critical need for intelligent transportation systems (ITS). In particular, traffic volume forecasts will support proactive, dynamic ... -
Examining the Influence of Speed Limits for Multilane Highways with Curbs and Gutters
(American Society of Civil Engineers, 2014)This research assesses the current practices used to determine the correct speed limits when widening two-lane highways with -
Delay Time Model at Unsignalized Intersections
(American Society of Civil Engineers, 2014)A simulation process is presented for providing a point estimate of average traffic delay on minor roads at urban unsignalized intersections during peak hours. A performing process of microsimulation was carried out, and ... -
Effect of Geogrid Reinforcement in Model Track Tests on Pavements
(American Society of Civil Engineers, 1999) -
Impacts of Road-Trains on the Geometric Design of Highways
(American Society of Civil Engineers, 2015)For enhanced efficiency and sustainability, transportation must rely on new technologies. Researchers and engineers work nowadays on many valuable and green transportation ideas. One such idea creates vehicle platoons on ... -
Maximum Curving Speed
(American Society of Civil Engineers, 2014)Full equilibrium superelevations are rarely installed on tracks. Consequently, trains run on unbalanced superelevations. Currently, the maximum curving speed is modeled with blanket unbalanced superelevations. Blanket ... -
Model to Estimate Trip Distribution: Case Study of the Marmaray Project in Turkey
(American Society of Civil Engineers, 2014)Istanbul, the only city that straddles two continents, Europe and Asia, is one of the biggest metropolitan areas in the world with over thirteen million residents. The demand for transportation in Istanbul has been boosted ... -
Characterization of the Stiffness of Unbound Materials for Pavement Design: Do We Follow the Right Approach?
(American Society of Civil Engineers, 2014)Two main approaches have been followed to determine the modulus of unbound materials in six asphalt pavement sections tested at the CEDEX test track. The first one consists on back-calculation from the deflection bowls ... -
Improved k-nn for Short-Term Traffic Forecasting Using Temporal and Spatial Information
(American Society of Civil Engineers, 2014)This paper proposes an improved -
Potentialities of Data-Driven Nonparametric Regression in Urban Signalized Traffic Flow Forecasting
(American Society of Civil Engineers, 2014)Single-interval forecasting of traffic variables plays a key role in modern intelligent transportation systems (ITSs). Despite the achievements of advanced ITS forecasting in literature, forecast modeling of urban signalized ... -
Profitability Evaluation of Intelligent Transport System Investments
(American Society of Civil Engineers, 2002)The objective of this study was to consider evaluation methods for intelligent transport system (ITS) investments, to point out some shortcomings of traditional methods (mainly benefit-cost analysis), to develop alternative ... -
Selection of Preoverlay Repair Methods for Asphalt Overlay on Asphaltic and Composite Pavements in Wisconsin Based on Cost Effectiveness
(American Society of Civil Engineers, 2015)Asphalt concrete (AC) overlay is a commonly used rehabilitation technology for existing distressed pavements. Current practice regarding the selection of preoverlay repair is based on the experience of designers and field ... -
On Ride-Sharing: A Departure Time Choice Analysis with Latent Carpooling Preference
(American Society of Civil Engineers, 2014)This paper presents a departure time choice analysis, based on the notion of a latent carpooling preference. The study is based on combined revealed preference and stated preference survey data collected on the Maryland ... -
Optimization Framework for Bicycle Network Design
(American Society of Civil Engineers, 2014)This paper presents a new formulation for the network design problem as it relates to retrofitting existing roadway infrastructure for bicycles. The goal of the problem is, for a minimum cost, to connect all origin–destination ... -
Concrete Pavers for Aircraft Pavement Surfaces
(American Society of Civil Engineers, 1986)Analysis of trials and tests carried out at Luton Airport in the United Kingdom has indicated that concrete pavers provide a surfacing for aircraft pavements which has certain advantages over the pavement quality concrete ... -
Optimal Modification of Urban Bus Network Routes Using a Genetic Algorithm
(American Society of Civil Engineers, 2015)The bus network design problem refers to a determination of optimizing the network of bus routes, usually in urban areas. The optimal routes must comply with a given passenger demand matrix and attain a compromise best ... -
Long-Term Trend of Temporal Distribution of Roadway Traffic
(American Society of Civil Engineers, 2015)This paper investigates the long-term trend of temporal distribution of roadway traffic using hourly traffic-count data collected in Seoul, South Korea, from 1995 to 2010. Interpolations using quadratic local polynomial ... -
Heuristic Approach for Optimizing Emergency Medical Services in Road Safety within Large Urban Networks
(American Society of Civil Engineers, 2014)Emergency medical service (EMS) providers participating in vehicle crash-induced incident management aim to offer as wide and efficient coverage as possible to meet the demand for incident responses effectively; however, ... -
Optimizing Headways for Mass Rapid Transit Services
(American Society of Civil Engineers, 2014)Mass rapid transit (MRT) operators need to balance the total system costs with the level of service. The primary service of MRT systems is to provide cost-efficient mobility. Governments are responsible for establishing ... -
Combined Decision Making of Congestion Pricing and Capacity Expansion: Genetic Algorithm Approach
(American Society of Civil Engineers, 2014)This paper presents a solution methodology that can be used to determine the optimal solution for the combined congestion pricing and capacity expansion problems. A bilevel genetic algorithm (GA)-based optimization solution ...