Browsing Journal of Transportation Engineering, Part A: Systems by Issue Date
Now showing items 1-20 of 3910
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Data Fusion Approach for Evaluating Route Choice Models in Large-Scale Complex Urban Rail Transit Networks
(ASCE, 1/1/2020 1)With the increases in both the urban rail transit (URT) network scale and complexity, a route choice model that was previously developed may not function properly anymore and therefore must be constantly evaluated if ... -
Speed, Fatigue Test, and P2 Load Limit: Fatigue Strength of Railroad Rail
(ASCE, 1/1/2020 1)The allowable bending fatigue stress in a rail will determine the maximum allowable speed, which is then checked against the current operating speed. Therefore, some sensible value of allowable bending fatigue stress must ... -
Micro- and Macroapproach to Modeling Relationship between Control and Stopped Delays at Signalized Intersections
(ASCE, 1/1/2020 1)Control delay, the most important measure of effectiveness at signalized intersections, is commonly estimated using analytical models due to the difficulty of field measurements. In analytical models, the uniform component ... -
Long-Term Railway Network Planning Using a Multiperiod Network Design Model
(ASCE, 1/1/2020 1)Railway networks are one of the major parts of the transportation infrastructure. Development of this network by the construction of new lines or the capacity improvement of existing lines needs time and capital cost. ... -
Highway Cost Analysis for Platooning of Connected and Autonomous Trucks
(ASCE, 1/1/2021)If connected and autonomous vehicles use highways under current lane management policy, only partial benefit can be reaped from the platooning of advanced vehicles. Agencies may have to update the existing policy in the ... -
Deterministic and Stochastic Capacity in Work Zones: Findings from a Long-Term Work Zone
(ASCE, 1/1/2021)This paper describes the development of a breakdown probability model for a long-term work zone in a suburban area. It was found that the Gompertz distribution best describes the breakdown probability at a work zone. In ... -
From Driving Simulator Experiments to Field-Traffic Application: Improving the Transferability of Car-Following Models
(ASCE, 1/1/2021)Over the last few decades, there have been two main streams of data used for driving behavior research: trajectory data collected from the field [such as using video recordings and global positioning systems (GPS)] and ... -
Innovative Methods for Delivering Fresh Food to Underserved Populations
(ASCE, 1/1/2021)This study analyzed a last-mile fresh food delivery system for individuals in underserved communities. Five alternative delivery networks with various modes were considered: conventional trucks, electric cargo bikes, ... -
Sensitivity Analysis of Maximum Weaving Length for One-Sided Weaving Section Based on <i>HCM</i> <i>2016</i>
(ASCE, 1/1/2021)As explained in the Highway Capacity Manual (HCM), if the segment length is greater than the maximum weaving length (Lwmax), it is considered to be separate segments of merging and diverging; otherwise, it is a weaving ... -
Exploring the Spatially Heterogeneous Effects of Urban Built Environment on Road Travel Time Variability
(ASCE, 1/1/2021)Most studies of road travel time estimation have been based on traffic-flow theory or data-driven methods and generally neglect the influence of urban built environment on road travel time. A global regression model and a ... -
Calibrating Microscopic Car-Following Models for Adaptive Cruise Control Vehicles: Multiobjective Approach
(ASCE, 1/1/2021)Adaptive cruise control (ACC) vehicles are the first step toward comprehensive vehicle automation. However, the impacts of such vehicles on the underlying traffic flow are not yet clear. Therefore, it is of interest to ... -
Evacuation Traffic Management under Low Visibility and Toxic-Gas Leakage Disasters
(ASCE, 1/1/2021)The majority of existing evacuation models neglect the fact that leaking toxic gas usually degrades atmospheric visibility under chemical disasters. This paper takes the impact of leaking toxic gas on atmospheric visibility ... -
Impact of the Safe Routes to School Program: Comparative Analysis of Infrastructure and Noninfrastructure Measures in Indiana
(ASCE, 1/1/2021)The Safe Routes to School (SRTS) program apportions funding for safety interventions aimed at encouraging walking and bicycling as viable transportation modes to school. Initially, the SRTS program (2006–2012) allocated ... -
New Geometric Design Approach to Reduce Vehicle’s Speed in Accident-Prone Downgrade Highways Using Dynamic Vehicle Modeling
(ASCE, 1/1/2021)Steep downgrades are known as a part of mountain roads with a significant number of severe crashes. Generally, using speed limiters such as speed bumps and speed humps are considered the most effective (considering both ... -
Traffic Signal Retiming to Improve Corridor Performance
(ASCE, 1/1/2021)Traffic signal retiming involves periodically updating existing signal coordination plans of signalized corridors. Nevertheless, there are still several limitations with the current signal retiming practice, such as managing ... -
Active Strategy to Improve the Right-Turn Capacity at Signalized Intersections
(ASCE, 1/1/2021)Conflicts between the right-turn vehicles and crossing pedestrians at signalized intersections not only endanger pedestrians, but also impede the ability of vehicles to execute their runs. The strategy proposed in this ... -
Application of Random Effects Nonlinear Model for Analyzing Motorized and Nonmotorized Traffic Safety Performance
(ASCE, 1/1/2021)In this paper, we investigated the influence of the cross-sectional characteristics of bicycle lanes on motorized and nonmotorized traffic safety. The safety effects of bicycle lanes with different widths were assessed ... -
Reconfiguring Urban Undivided Four-Lane Highways to Five-Lane: A Nonideal but Very Effective Solution for Crash Reduction
(ASCE, 10/1/2020 )Although a reconfiguration to three-lane with a left turn lane remains the most prevalent cost-effective countermeasure, some four-lane undivided highway segments in Louisiana have been reconfigured to five-lane segments ... -
Effects of Line-Capacity Reductions on Urban Rail Transit System Service Performance
(ASCE, 10/1/2020 )In the daily operations of urban rail transit (URT) systems, line capacity sometimes is reduced, which worsens service performance. To measure the effects of line capacity reductions on URT system service performance in a ... -
Estimating Sectional Volume of Travelers Based on Mobile Phone Data
(ASCE, 10/1/2020 )The sectional volume of travelers refers to the number of travelers crossing a section boundary (e.g., river, mountain, railway line, etc.) within a certain time period. Mobile phone data provides continuous and ...