Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 1541-1560 of 4147
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Functional Evaluation of Pavement Condition Using a Complete Vision System
(American Society of Civil Engineers, 2014)The ability of a pavement to withstand traffic loads and serve the motoring public in a safe and efficient manner is adversely affected by the observable pavement surface distresses. Therefore, monitoring the performance ... -
Using a Living Laboratory to Support Transportation Research for a Freeway Work Zone
(American Society of Civil Engineers, 2014)This paper presents the concept of a living laboratory (LL) and how it is applied to transportation operations research through a case study. This case study focuses on calibrating the Wiedemann car-following model parameters ... -
Application of Geographically Weighted Regression Technique in Spatial Analysis of Fatal and Injury Crashes
(American Society of Civil Engineers, 2014)Generalized linear models (GLMs) are the most widely used models utilized in crash prediction studies. These models illustrate the relationships between the dependent and explanatory variables by estimating fixed global ... -
Stochastic Analysis of the Duration of Occlusion of an Overhead Sign by a Leading Heavy Vehicle: Application to Sign Design
(American Society of Civil Engineers, 2014)With the increase in multilane expressways the use of overhead signs has also increased. A driver can miss an overhead sign because of occlusion of the sign by a leading heavy vehicle. Little or no research has been carried ... -
Roughness Progression Model for Asphalt Pavements Using Long-Term Pavement Performance Data
(American Society of Civil Engineers, 2014)A reliable pavement performance prediction model is needed for road infrastructure asset management systems or pavement management systems. In this study, the data on roughness progression of asphalt pavements in the ... -
Assessing the Safety Effects of Removing Highway Mainline Barrier Toll Plazas
(American Society of Civil Engineers, 2014)Toll plazas create a number of bottlenecks on highways. They can induce motor vehicle crashes and also put workers such as toll collectors at risk. Enhancing safety at toll plazas is crucial to improving safety on tolled ... -
Proposal of a New Global Model of Consistency: Application in Two-Lane Rural Highways in Spain
(American Society of Civil Engineers, 2014)Consistency is the relationship between the geometric characteristics of a highway and the conditions a driver expects to encounter. In this study, based on operating speed, consistency was calculated in two-lane rural ... -
Performance Characterization of Hot In-Place Recycled Asphalt Mixtures
(American Society of Civil Engineers, 2014)Despite the widespread use of in-place recycling, limited information is available in the literature on in situ and laboratory properties of materials placed through in-place recycling. The main objectives of present study ... -
Comparison of Clustering Methods for Road Group Identification in FHWA Traffic Monitoring Approach: Effects on AADT Estimates
(American Society of Civil Engineers, 2014)Defining road groups is the first step in the Federal Highway Administration (FHWA) factor approach procedure for annual average daily traffic (AADT) estimation and is one of the main sources of errors in AADT estimates. ... -
Modeling Variations in Bus Schedule Adherence at the Stop Level on an Urban Arterial Road
(American Society of Civil Engineers, 2014)The purpose of this study is to assess the adherence of buses to their schedules when they are operating in specific conditions made by separating buses from fast general traffic by median islands, but still sharing curbside ... -
Estimation of Entry Capacity for Single-Lane Modern Roundabouts: Case Study in Queensland, Australia
(American Society of Civil Engineers, 2014)Single-lane modern roundabouts are one of the most important intersection types in the suburbs of Australia. Therefore, it is important to estimate their entry capacities. In this case study, an analytical model based on ... -
Combining the Statistical Model and Heuristic Model to Predict Flow Rate
(American Society of Civil Engineers, 2014)Statistical and heuristic models have been proposed as applications that are well suited to short-term traffic flow prediction. However, traffic flow data often contain both linear and nonlinear patterns. Therefore, neither ... -
Spiral Length Design
(American Society of Civil Engineers, 2014)In the literature, the length of a clothoid spiral usually is determined by three equations. These equations do not lead to the same length. As a result, all equations are applied and the maximum length is chosen. Of these ... -
Modeling Retroreflectivity Performance of Thermoplastic Pavement Markings in Alabama
(American Society of Civil Engineers, 2014)Pavement markings play an important role in the roadway system because they provide information for drivers to follow the road. Markings must be replaced when their retroreflectivity falls below an acceptable level. The ... -
Improved Operational Performance Assessment for Two-Lane Highway Facilities
(American Society of Civil Engineers, 2014)Historically, two-lane highways served primarily as uninterrupted flow connectors between major population centers. Increasingly, however, population growth in areas between the major population centers along these highways ... -
Estimating Transit Route OD Flow Matrices from APC Data on Multiple Bus Trips Using the IPF Method with an Iteratively Improved Base: Method and Empirical Evaluation
(American Society of Civil Engineers, 2014)An iterative method is proposed to estimate bus route origin-destination (OD) passenger flow matrices from boarding and alighting data for time-of-day periods in the absence of good -
Unpaved Road Dust Control in the Piceance Creek Basin in Rio Blanco County, Colorado
(American Society of Civil Engineers, 2015)Road dust from unpaved roads (dirt roads) is a major source of airborne particulates; the loss of those fines accelerates the deterioration of roads. As a result, road dust emissions are a major concern of the users and ... -
Rolling Resistance Measurement and Model Development
(American Society of Civil Engineers, 2015)There is an increased focus worldwide on understanding and modeling rolling resistance because reducing the rolling resistance by just a few percent will lead to substantial energy savings. This paper reviews the state of ... -
Logit-Based Merging Behavior Model for Uncontrolled Intersections in China
(American Society of Civil Engineers, 2014)It has been previously documented that under the condition of crossing an uncontrolled intersection, the decision-making process of drivers is rather complex and highly interactive: they need to decide about the timing, ...