Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 2801-2820 of 4147
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Method for Balancing Cut-Fill and Minimizing the Amount of Earthwork in the Geometric Design of Highways
(American Society of Civil Engineers, 2003)In highway projects, economic considerations are as important as other design controls and elements of design. As a result, the highway designer should consider cut and fill balance along with minimizing earthwork which ... -
Guidelines for Estimating Capacity at Freeway Reconstruction Zones
(American Society of Civil Engineers, 2003)This paper reports findings from recent investigations into freeway capacity at several reconstruction zones in Ontario, Canada. The aim is to provide guidelines for estimating freeway capacity at reconstruction sites. ... -
Discussion of “Estimating Vehicle Fuel Consumption and Emissions Based on Instantaneous Speed and Acceleration Levels” by Kyoung Ahn, Hesham Rakha, Antonio Trani, and Michel Van Aerde
(American Society of Civil Engineers, 2003) -
Application of Construction and Building Debris as Base and Subbase Materials in Rigid Pavement
(American Society of Civil Engineers, 2003)This research presents the test results of a laboratory and field study performed to investigate the characteristics and performance of dry and wet recycled concrete aggregate (RCA) as base and subbase materials for concrete ... -
Optimal Time Transfer in Bus Transit Route Network Design Using a Genetic Algorithm
(American Society of Civil Engineers, 2003)In this paper we propose a new model showing how genetic algorithms can be manipulated to help optimize bus transit routing design, incorporating unique service frequency settings for each route. The main lesson is in the ... -
Paving Machine Improvements
(American Society of Civil Engineers, 2003)This paper details a way to improve asphalt pavement durability by making specific changes to asphalt paving machines. -
Exploiting Motor Vehicle Information and Communications Technology for Transportation Engineering
(American Society of Civil Engineers, 2003)Technology already exists to capture and communicate a variety of information from motor vehicles. Automobiles are equipped with sensors and can reliably report their location, velocity, and condition via cellular ... -
Neuro-Fuzzy Logic Model for Freeway Work Zone Capacity Estimation
(American Society of Civil Engineers, 2003)The work zone capacity cannot be described by any mathematical function because it is a complicated function of a large number of interacting variables. In this paper, a novel adaptive neuro-fuzzy logic model is presented ... -
Vehicle Detection Using Video Image Processing System: Evaluation of PEEK VideoTrak
(American Society of Civil Engineers, 2003)This paper describes validation results of a video image processing systems: PEEK VideoTrak 900. For this research, 12 PEEK VideoTrak 900s were installed on Interstate Highway I-75 in the Atlanta metropolitan region, and ... -
Critical Gap as a Function of Waiting Time in Determining Roundabout Capacity
(American Society of Civil Engineers, 2003)This paper presents a study of two important roundabout performance issues: (1) the impact of the waiting time of drivers on the approach leg, on the critical gap they accept before entering a roundabout and (2) the entry ... -
Radial Basis Function Neural Network for Work Zone Capacity and Queue Estimation
(American Society of Civil Engineers, 2003)An adaptive computational model is presented for estimating the work zone capacity and queue length and delay, taking into account the following factors: number of lanes, number of open lanes, work zone layout, length, ... -
Improved Vehicle Reidentification and Travel Time Measurement on Congested Freeways
(American Society of Civil Engineers, 2003)This paper presents an improved algorithm for matching individual vehicle measurements at a freeway detector station with the vehicles’ corresponding measurements taken at another detector station located upstream. The ... -
Effects of Excessive Pavement Joint Opening and Freezing on Sealants
(American Society of Civil Engineers, 2003)The primary purposes of joint sealing in jointed concrete pavements are to minimize moisture infiltration through the joints, to reduce moisture-related distress (such as pumping), and to prevent the intrusion of incompressible ... -
Estimating Rear-End Accident Probabilities at Signalized Intersections: Occurrence-Mechanism Approach
(American Society of Civil Engineers, 2003)At signalized intersections, rear-end accidents are frequently the predominant accident type. These accidents result from the combination lead-vehicle deceleration and the ineffective response of the following vehicle’s ... -
Estimating Safety Benefits of Road Improvements: Case Based Approach
(American Society of Civil Engineers, 2003)Improvements to road safety have become a high priority for road authorities due to increasing public awareness and concern of the high social and economic costs of collisions. However, satisfying this priority in an ... -
Proposed Methodology of Optimizing Transitioning Between Time-of-Day Timing Plans
(American Society of Civil Engineers, 2003)Timing plans for coordinated signals are developed online using real-time traffic data collected by detectors or offline using traffic data previously collected but is representative of the period in which the timing plan ... -
Truck Speed Profile Models for Critical Length of Grade
(American Society of Civil Engineers, 2003)The climbing lane is an effective means by which to increase roadway capacity, improve safety, and provide smooth traffic operation on mountainous and rolling terrains where significant trucking prevails. Current critical ... -
Effect of Vertical Alignment on Driver Perception of Horizontal Curves
(American Society of Civil Engineers, 2003)The perception of the driver of the road features ahead is an important human factor that can considerably affect traffic safety and design consistency, and should be addressed in road design. An erroneous perception of ... -
Effect of Aggregate Spacing on Skid Resistance of Asphalt Pavement
(American Society of Civil Engineers, 2003)In the design of skid resistant asphalt pavements, it is a common practice in pavement engineering to perform laboratory tests to ensure that the paving aggregate has the required frictional resistance and wheel-polishing ... -
Dynamic Stiffness Modulus for Pavement Subgrade Evaluation
(American Society of Civil Engineers, 2003)To avoid cumbersome traditional techniques for pavement subgrade evaluation such as the California bearing ratio and the plate loading test, several nondestructive tests (NDT) as well as suitable analysis processes have ...