Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 1941-1960 of 4147
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Impact of Bus-Only Lane Location on the Development and Performance of the Logic Rule-Based Bus Rapid Transit Signal Priority
(American Society of Civil Engineers, 2012)Curb bus-only lanes and median bus-only lanes are two commonly used types of the on-street running ways of bus rapid transit (BRT) systems. Transit signal priority (TSP) has proven viable in improving transit schedule ... -
Distribution Characteristics of Vehicle-Specific Power on Urban Restricted-Access Roadways
(American Society of Civil Engineers, 2012)The development of new fuel consumption and emission models creates the need to characterize traffic conditions by using vehicle-specific power (VSP) distribution. However, in existing transportation engineering, there has ... -
Modeling Travel Time under the Influence of On-Street Parking
(American Society of Civil Engineers, 2012)On-street parking is an important component of the parking system. Because of its occupancy of roadway resources, it can significantly impact traffic performance and safety. The aim of this paper is to give a quantitative ... -
Modeling the Behavior of Steel-Fiber Reinforced Concrete Ground Slabs. II: Development of Slab Model
(American Society of Civil Engineers, 2011)Steel-fiber reinforced concrete (SFRC) brings favorable properties to concrete pavements. The use of the material is limited by the lack of an appropriate analysis method. This paper is the second in a series of two aimed ... -
Highway Geometric Design from the Perspective of Recent Safety Developments
(American Society of Civil Engineers, 2011) -
Scale and Condition Economies in Asset Preservation Cost Functions: Case Study Involving Flexible Pavement Treatments
(American Society of Civil Engineers, 2012)Estimates of planning-level treatment costs are vital inputs for preservation project budgeting, prioritization, and programming in highway asset management. However, with the paucity of analytical research on highway asset ... -
Operating Speed and Speed Differential for Highway Design Consistency
(American Society of Civil Engineers, 2011)A critical factor in highway design is maintaining a good consistency with a road geometry that fits the drivers’ expectations. Presently, highway geometric design consistency is usually evaluated on the basis of operating-speed ... -
Longitudinal Road Profile Spectrum Approximation by Split Straight Lines
(American Society of Civil Engineers, 2012)The presented study compares three alternative straight-line approximations of the longitudinal road-profile power spectral density (PSD). The one straight line and two and three split straight-line approximations were ... -
Dynamic Vehicle Dispatching at a Transfer Station in Public Transportation System
(American Society of Civil Engineers, 2012)Dynamic vehicle dispatching at the transfer station can improve the transit service quality by optimizing the transfer coordination of routes. In this paper, a dynamic vehicle dispatching model is proposed that aims to ... -
Head Ejection during Barrier Impacts
(American Society of Civil Engineers, 2012)During oblique vehicular impacts with longitudinal barriers, an occupant’s head is often ejected out of a side window. When this occurs, the occupant’s head can contact the barrier or an object attached thereto. This impact ... -
Comparison of Laser-Based and Sand Patch Measurements of Pavement Surface Macrotexture
(American Society of Civil Engineers, 2012)This study compares the results of two measurement methods for pavement surface macrotexture: the ASTM E965 sand patch volumetric method and the Digital Surface Roughness Meter (DSRM, laser technique) conducted at a total ... -
Bus-Arrival-Time Prediction Models: Link-Based and Section-Based
(American Society of Civil Engineers, 2012)Bus-arrival-time information service is a key component of an advanced transit information system. Instantaneous and accurate prediction of bus arrival time can help improve the quality of service, and attracts additional ... -
Prediction Model of Bus Arrival Time at Signalized Intersection Using GPS Data
(American Society of Civil Engineers, 2012)Accurate prediction of bus arrival time at the stop line is a vital element to the bus signal priority system, but most previous approaches focused on predicting bus arrival times at next bus stops only. This paper develops ... -
Correlation of Asphalt Concrete Layer Moduli Determined from Laboratory and Nondestructive Field Tests
(American Society of Civil Engineers, 2012)The falling weight deflectometer (FWD) is widely used for in situ nondestructive assessment of pavement layer moduli. For this purpose, FWD deflections are used with a number of back-calculation methodologies to come up ... -
Determining Lane Use Distributions Using Basic Freeway Segment Density Measures
(American Society of Civil Engineers, 2012)Lane use distribution is a useful factor in understanding the lane-by-lane variations of speed and volume on freeways. The most common lane distribution measure has been traffic volume. However, because travel speed from ... -
Investigation into the Structural Performance of Pervious Concrete
(American Society of Civil Engineers, 2012)To expand the applications of pervious concrete, additional research and testing must be conducted as to its structural performance. Distress surveys were performed on two field installations of pervious concrete subjected ... -
Anisotropic Viscoelastic Properties of Undamaged Asphalt Mixtures
(American Society of Civil Engineers, 2012)A test protocol and a data analysis method are developed in this paper on the basis of linear viscoelastic theory to characterize the anisotropic viscoelastic properties of undamaged asphalt mixtures. The test protocol ... -
Laboratory Investigation of Open-Graded Friction-Course Mixtures Containing Polymers and Cellulose Fibers
(American Society of Civil Engineers, 2012)Open-graded friction course (OGFC), which consists of an open gradation mostly of coarse size aggregate with little fines, is a special purpose mixture that is increasingly used in pavement surfacing around the world. The ... -
Injury Severity of Multivehicle Crash in Rainy Weather
(American Society of Civil Engineers, 2012)As part of the Wisconsin road weather safety initiative, the objective of this study was to microscopically assess the factor effects on the severities of multivehicle-involved crashes on high-speed roadways during rainfall ... -
Laboratory Study on Moisture Susceptibility of Dense Graded Mixes
(American Society of Civil Engineers, 2012)Moisture damage is the degradation of the mechanical properties of the material attributable to the presence of moisture in its microstructure. To enhance the life of bituminous pavements, it is necessary to understand ...