Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 1121-1140 of 4147
-
Decision Support Systems for Real-World High-Speed Rail Planning
(American Society of Civil Engineers, 2016)The selection of the macrolocation of new high-speed rail (HSR) systems during the planning stage affects the associated infrastructure costs. The process is influenced by the complex interaction between the HSR alignment, ... -
Modeling the Effects of Rainfall Intensity on the Heteroscedastic Traffic Speed Dispersion on Urban Roads
(American Society of Civil Engineers, 2016)The heteroscedasticity refers to a collection of random variables with a subpopulation that have different dispersions from others. The variable dispersion could be quantified by measures of statistical dispersion such as ... -
Performance Evaluation and Correction Functions for Automated Pedestrian and Bicycle Counting Technologies
(American Society of Civil Engineers, 2016)Automated counting technologies are one of the fastest growing sources of data in the non-motorized transportation field. Although automated counts make it possible to collect data for longer time periods and to document ... -
Challenges in Developing a Transportation Sustainability Rating System That Meets the Preferences of a Department of Transportation
(American Society of Civil Engineers, 2016)Increasingly, sustainability is a key indicator for planning transportation projects. As a result, evaluating the applicability of various transportation sustainability rating systems (TSRS) for adoption is important for ... -
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 ... -
Routing Trains with Consideration of Congestion-Induced Link and Node Delay
(American Society of Civil Engineers, 2016)North American heavy haul railroads are experiencing growth in traffic demand and increases in capacity constraints. An appropriate service-design process is thus crucial to allow for more effective network capacity planning ... -
Dynamic Interaction of Vehicle and Discontinuous Slab Track Considering Nonlinear Hertz Contact Model
(American Society of Civil Engineers, 2016)This paper develops a new two-dimensional numerical model of vehicle/discontinuous slab track dynamic interaction. The vehicle is simulated as a multibody system with 10 degrees of freedom. The slab track is represented ... -
Reliability Analysis of Left-Turn Sight Distance at Signalized Intersections
(American Society of Civil Engineers, 2016)The current method for the analysis of sight distance for left-turn vehicles at signalized intersections assumes that all component variables are deterministic. This paper presents a probabilistic approach based on such ... -
Predictive Maintenance Model for Ballast Tamping
(American Society of Civil Engineers, 2016)In order to optimally schedule railway track maintenance operations, it is essential to accurately estimate future track conditions. This study proposes a railway track geometry degradation model that considers uncertainties ... -
Safety Effectiveness of Centerline Plus Shoulder Rumble Strips on Two-Lane Rural Roads
(American Society of Civil Engineers, 2016)The combined application of centerline and shoulder rumble strips is intended to reduce the frequency of crashes by alerting drivers that they are about to leave the traveled lane. To date, this combination treatment has ... -
An Optimization Strategy for Improving the Economic Performance of Heavy-Haul Railway Networks
(American Society of Civil Engineers, 2016)Optimization of wagon flow organization in heavy-haul loading areas is meaningful to develop a heavy-haul railway network and to improve transportation capacity. This paper proposes a multiobjective optimization of the ... -
Vehicle Speed and Acceleration Profile Study for Metered On-Ramps in California
(American Society of Civil Engineers, 2016)Ramp metering has been proven as an effective freeway-management strategy; however, one of the critical challenges in design and operation of ramp metering is the lack of up-to-date design guidance for acceleration lanes. ... -
A Model and Its Applications for Predicting Passing Rate at Passing Zones on Two-Lane Rural Highways
(American Society of Civil Engineers, 2016)Passing zones are designed to provide sufficient sight distance for fast vehicles to pass safely slow vehicles and contribute to operational efficiency of two-lane highways. However, lack of suitable models to predict ... -
Development of Speed Correction Factors Based on Speed-Specific Distributions of Vehicle Specific Power for Urban Restricted-Access Roadways
(American Society of Civil Engineers, 2016)Precise facility-specific speed correction factors (SCFs) are important parameters for direct and quick evaluation of the effect of traffic flow variations on vehicle emissions. However, the traditional method in developing ... -
Effectiveness Analyses of Flexible Pavement Preventive Maintenance Treatments with LTPP SPS-3 Experiment Data
(American Society of Civil Engineers, 2016)The present study analyzes the effectiveness of preventive maintenance (PM) treatments of flexible pavements utilizing data obtained from the specific pavement study 3 (SPS-3) of the long-term pavement performance (LTPP) ... -
Effort Allocation in Rural Road Safety Analysis under Data-Limited Conditions
(American Society of Civil Engineers, 2016)Traffic safety policy defines plans that are expressed using numerical values for the planned level of improvement. The directing or apportioning of efforts represents the initial step of planned improvements. If a road ... -
Quality of Private Sector Travel-Time Data on Arterials
(American Society of Civil Engineers, 2016)Accurate traffic state information is essential for both travelers and transportation agencies. In the past, traffic condition data were usually collected by a government agency using its own sensors. Recently, a number ... -
Nonlinear Safety Analysis of a Running Road Vehicle under a Sudden Crosswind
(American Society of Civil Engineers, 2016)Threats of wind gusts on the safety of road vehicles have been reported around the world, and extensive studies have been carried out to find the accident speeds of road vehicles under a sudden crosswind. However, most ... -
k-Nearest Neighbor Model for Multiple-Time-Step Prediction of Short-Term Traffic Condition
(American Society of Civil Engineers, 2016)One of the most critical functions of an intelligent transportation system (ITS) is to provide accurate and real-time prediction of traffic condition. This paper develops a short-term traffic condition prediction model ...