Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 1861-1880 of 4147
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Using Naturalistic Field Operational Test Data to Identify Horizontal Curves
(American Society of Civil Engineers, 2012)Investigations to identify relationships between crashes and road features usually deal with effects of only one or two of the main components of traffic safety, i.e., human, vehicle, and infrastructure performance. There ... -
Freight Resilience Measures
(American Society of Civil Engineers, 2012)People, industries, and public agencies all face the possibility of sudden events that disrupt their normal activities. Disasters on the transportation network, whether attributable to nature, human error, or human intent, ... -
Effects of Fillers on Properties of Asphalt-Concrete Mixture
(American Society of Civil Engineers, 2012)The role of filler on the mechanical performance of asphalt-concrete mixture was investigated. Three wearing course (W3B) mixtures incorporating granite, hydrated lime, and kaolin as filler fractions were evaluated by the ... -
Traffic Performance in Signalized Intersection with Shared Lane and Left-Turn Waiting Area Established
(American Society of Civil Engineers, 2012)This paper highlights the left-turn waiting area in an intersection and proposes a different perspective for measuring the capacity of the traffic flows, which permits the through vehicles to queue on the left lane in a ... -
Evaluation Procedure for Mutually Exclusive Highway Safety Alternatives under Different Policy Objectives
(American Society of Civil Engineers, 2012)The purpose of evaluating mutually exclusive alternatives is to select the one with the most benefits for implementation. A number of analytic techniques are available for such evaluation purposes. This paper discusses ... -
Application of GLASSO in Variable Selection and Crash Prediction at Unsignalized Intersections
(American Society of Civil Engineers, 2012)In this paper, a new promising variable screening technique is proposed to select important covariates and to improve crash prediction; the group least absolute shrinkage and selection operator (GLASSO). The GLASSO’s main ... -
Evaluation of Superpave HMA Mixture Properties at the Plant versus behind the Paver: Statistical Comparison of QC and QA Data
(American Society of Civil Engineers, 2012)State highway agencies concerned with lower asphalt levels and potential durability problems in hot-mix asphalt (HMA) mixtures designed with superior performing asphalt pavements (Superpave) have lead efforts to explore ... -
Comparison of Driver Behavior by Time of Day and Wet Pavement Conditions
(American Society of Civil Engineers, 2012)This study uses the two-fluid model for traffic flow, to examine driver behavior during both wet and dry pavement conditions and various times of the day. It was found that parameters in the two-fluid model known to be ... -
Identifying Lane-Change Maneuvers with Probe Vehicle Data and an Observed Asymmetry in Driver Accommodation
(American Society of Civil Engineers, 2012)This paper uses an instrumented probe vehicle to monitor ambient traffic and overcome many challenges of observing traffic flow phenomena that occur over extended distances. One contribution of this paper is a general ... -
New Approach for Developing an Asphalt Concrete Overlay Transition Standard
(American Society of Civil Engineers, 2012)Smooth transitions are necessary to ensure the desired ride for the traveling public. Transitions are used within projects as new pavement approaches a bridge to avoid adding unnecessary dead load on the bridge. As roadways ... -
Modeling Origin-Destination Effects on Roundabout Operations and Inflow Control
(American Society of Civil Engineers, 2012)Traffic flows around roundabouts have been found to be dependent on origin-destination flows, but the true nature of this relationship is not properly understood. Present analyses are based on either gap acceptance models ... -
Reliability-Based Risk Analysis of Roadway Horizontal Curves
(American Society of Civil Engineers, 2012)Reliability-based analysis of road geometric design has been reported in literatures as a trend in transportation safety study. In the reliability analysis of a horizontal curve, the performance function is usually formulated ... -
Application of Paths Information in Network Design Problem
(American Society of Civil Engineers, 2012)In a discrete network design problem, an optimal subset is chosen from a set of proposed link additions to an existing road network in order to minimize the total cost of users. The problem has been called as a complex ... -
Evaluation of Operational Effects of Joint Managed Lane Policies
(American Society of Civil Engineers, 2012)This paper presents a method to evaluate the operational effects of managed lane policies—vehicle eligibility, access control, pricing, and the number of managed lanes—that form a policy combination set. Two macroscopic ... -
Thermal Stresses of PCC Pavements Containing Fly Ash and Slag
(American Society of Civil Engineers, 2012)With the current demand for portland cement concrete (PCC) sustainability, supplementary cementitious materials (SCMs) are often used in concrete mixtures to improve the mixture properties in both fresh and hardened concrete. ... -
Options for Hauling Fully Loaded ISO Containers in the United States
(American Society of Civil Engineers, 2012)Civil engineers plan, design, manage, and guide investments in surface transportation. Truck weight limits are inextricably linked to the consideration of pavements, bridges, safety, asset management, sustainability, jobs, ... -
Stochastic Optimization for Coordinated Actuated Traffic Signal Systems
(American Society of Civil Engineers, 2012)Existing state-of-the-practice traffic signal timing-optimization programs rely on macroscopic and deterministic models to represent traffic flow, including coordinated actuated traffic signal systems. One distinct shortcoming ... -
Life-Cycle Cost Analyses for Road Barriers
(American Society of Civil Engineers, 2012)This study aimed at developing a new approach for analyzing life-cycle costs for road barriers during the road planning and design process. A method called Activity-Based Life-Cycle Costing using the Monte Carlo Simulation ... -
Financial Consequences of Delaying Pavement Rehabilitation: Case Study Using LTPP Data
(American Society of Civil Engineers, 2012)Transportation agencies have suffered stringent funding shortages for the past several years. As a result, many pavement preservation and rehabilitation projects have been substantially delayed. The financial consequences ... -
Development of Analytical Capacity Models for Conventional Railways with Advanced Signaling Systems
(American Society of Civil Engineers, 2012)Railways around the world are experiencing growth in traffic demand and the need to expand their network and line capacity. To accommodate the substantial demand, the conventional railway operator in Taiwan, the Taiwan ...