Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 1261-1280 of 4147
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Estimating Factors Contributing to Frequency and Severity of Large Truck–Involved Crashes
(American Society of Civil Engineers, 2017)Understanding the factors that contribute to crash frequency and severity will assist better highway design and develop appropriate countermeasures for hot spots, thereby improving the safety of the road system. This study ... -
Networkwide Impact of Telework in Urban Areas: Case Study of Bangalore, India
(American Society of Civil Engineers, 2017)Information and communication technology (ICT) is becoming ubiquitous, fuelled by the growing popularity of advanced equipment, apps, and high-bandwidth Internet connections. Individuals have been provided with virtual ... -
Improvement of Railway Maintenance Approach by Developing a New Railway Condition Index
(American Society of Civil Engineers, 2017)Railway track maintenance management systems are currently based on track geometry indexes with the aim of achieving the required level of track safety. Track passenger ride comfort (PRC) has not been taken into account ... -
Addressing the Local-Road VMT Estimation Problem Using Spatial Interpolation Techniques
(American Society of Civil Engineers, 2017)Vehicle miles of travel (VMT) data have a wide range of applications in highway agency business processes. However, at all administrative levels, highway agencies continue to be stymied by the poor reliability of local-road ... -
Minor-Street Vehicle Dilemma While Maneuvering at Unsignalized Intersections
(American Society of Civil Engineers, 2017) -
Estimation of Daily Bicycle Traffic Volumes Using Spatiotemporal Relationships
(American Society of Civil Engineers, 2017)Automatic counters (e.g., loop detectors) used for the continuous collection of cycling count data are subject to periodic malfunctions, leading to sporadic data gaps. This problem could affect the calculated values ... -
Evaluation of Actuated, Coordinated, and Adaptive Signal Control Systems: A Case Study
(American Society of Civil Engineers, 2017)As urban traffic congestion grows, traffic engineers must find ways to maximize the efficiency of traffic signal control. Different control strategies, including actuated, coordinated, and adaptive, have their own strengths ... -
Vehicle Skidding Assessment through Maximum-Attainable Constant-Speed Investigation
(American Society of Civil Engineers, 2017)An existing vehicle dynamics model was used to define design parameters up to which steady-state cornering conditions apply and consequently lift the restrictions of the point mass model. Besides a passenger car, the motion ... -
Delay at Signalized Intersections under Mixed Traffic Conditions
(American Society of Civil Engineers, 2017)Delay caused to an individual vehicle at a signalized intersection is a performance measure to assess the level of service. While dealing with delay in Indian traffic conditions, researchers generally opt for either the ... -
Quantifying the Effectiveness of Methods Used to Improve Railway Track Performance over Soft Subgrades: Methodology and Case Study
(American Society of Civil Engineers, 2017)This paper presents a methodology for quantifying the effectiveness of different methods used to improve the railway track performance on soft subgrades. This methodology consists of quantifying the changes in track stiffness ... -
Applying Travel-Time Reliability Measures in Identifying and Ranking Recurrent Freeway Bottlenecks at the Network Level
(American Society of Civil Engineers, 2017)The primary purpose of this study is to develop a systematic approach to effectively identifying and ranking recurrent freeway bottlenecks using travel-time reliability (TTR) measures. To achieve this goal, three subtasks ... -
Truck Parking Utilization Analysis Using GPS Data
(American Society of Civil Engineers, 2017)Unavailability of sufficient parking spaces during various periods at rest areas results in illegal and unsafe parking at on/off-ramps and other unauthorized areas, which may lead to traffic safety hazards. In this research, ... -
Pressure Distribution under Steel and Timber Crossties in Railway Tracks
(American Society of Civil Engineers, 2017)The pressure distribution under the crossties plays a key role in railroad performance. This study conducts laboratory testing to investigate the pressure distributions under two different types of crossties, steel and ... -
Impact of Heavy Vehicles on Highway Traffic Flows: Case Study in the Seoul Metropolitan Area
(American Society of Civil Engineers, 2017)Highway capacity manuals (HCM) have incorporated the effect of heavy vehicles (HVs) in the form of passenger car equivalents (PCEs) for estimating highway traffic conditions, which include the road’s slopes, the length of ... -
Capacity Modeling and Control Optimization for a Two-Lane Highway Lane-Closure Work Zone
(American Society of Civil Engineers, 2017)A two-lane highway lane-closure work zone is a unique work-zone type because of its traffic impact. When one lane of traffic is blocked, it is necessary to implement a traffic control strategy to effectively serve bidirectional ... -
Comparison of Analytical and Field-Estimated Lost Times at DDIs
(American Society of Civil Engineers, 2017)Diverging diamond interchanges (DDIs) are one of most successful unconventional type of diamond interchanges in the United States. This paper examines additional lost time due to internal link queue presence in DDIs. First, ... -
Some Thoughts on the Future of Transportation Engineering
(American Society of Civil Engineers, 2017) -
Random Regret Minimization and Random Utility Maximization in the Presence of Preference Heterogeneity: An Empirical Contrast
(American Society of Civil Engineers, 2016)Random regret minimization (RRM) interpretations of discrete choices are growing in popularity as a complementary modeling paradigm to random utility maximization (RUM). While behaviorally very appealing in the sense of ... -
Stop-Line Setback at a Signalized Roundabout: A Novel Concept for Traffic Operations
(American Society of Civil Engineers, 2016)This paper proposes a novel concept, stop-line setback (SLSB), aimed at enhancing the capacity of signalized roundabouts and solving the problem of unbalanced flow patterns. This method is believed to avoid wasting acceptable ... -
Multiobjective Optimization of Roadway Lighting Projects
(American Society of Civil Engineers, 2016)Roadway lighting systems play a major role in maintaining nighttime traffic safety as they reduce both the number and severity of nighttime traffic accidents. While the design of roadway lighting systems involves multiple ...