Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 1881-1900 of 4147
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Pavement Design Optimization Considering Costs and Preventive Interventions
(American Society of Civil Engineers, 2012)In Portugal, as in many other countries, due to the economic crisis, the trend of budgetary pressures on highway agencies is increasing. At the same time, road users are increasingly demanding in terms of highway quality, ... -
Evaluation of Effectiveness and Cost-Effectiveness of Asphalt Pavement Rehabilitations Utilizing LTPP Data
(American Society of Civil Engineers, 2012)This paper analyzed the effectiveness and cost-effectiveness of several asphalt pavement rehabilitations by investigating the long-term pavement performance (LTPP) database. The multiple regression method was employed to ... -
Numerical Modeling of Water Levels on Pavements under Extreme Rainfall
(American Society of Civil Engineers, 2012)This study presents an advanced model for calculating water levels on impervious areas. The approach combines information about rain intensity and flow condition to dynamically determine overland roughness values. When ... -
Deceleration Lengths for Exit Terminals
(American Society of Civil Engineers, 2012)General freeway design practice assumes deceleration for a vehicle exiting the freeway occurs between the point when the vehicle clears the through-traffic lane and the point of limiting design speed for the ramp proper. ... -
Determination of Damage Development in Asphalt Concrete Using Small-Scale Accelerated Pavement Testing via Frequency Domain Analysis Approach
(American Society of Civil Engineers, 2012)To predict the pavement response correctly at any condition, the constitutive relation between stress and strain will require the use of a damaged modulus. Several asphalt concrete slabs constructed in the laboratory using ... -
Estimating Capacity and Motorcycle Equivalent Units on Urban Roads in Hanoi, Vietnam
(American Society of Civil Engineers, 2012)This paper presents an investigation of the accurate methodology of motorcycle equivalent units (MEUs) in mixed traffic flow by considering the characteristics of moving vehicles, such as velocity and effective space. In ... -
Hierarchical Markov Chain Monte Carlo Simulation for Modeling Transverse Cracks in Highway Pavements
(American Society of Civil Engineers, 2012)Transverse cracks are distresses whose initiation and propagation affect the stability and structural integrity of the highway pavement. They are caused by load, moisture, temperature, construction defects, or a combination ... -
Short- and Long-Term Evaluation of Asphalt Concrete Strain Gauge Installation Methods Applied to the KHCTR
(American Society of Civil Engineers, 2012)In the present study, three strain gauge installation methods (mound, trench-cut, and block-out) are evaluated to propose a set of methods that are appropriate for different layers of hot mix asphalt (HMA) pavements. The ... -
Cross-Entropy as an Optimization Method for Bridge Condition Transition Probability Determination
(American Society of Civil Engineers, 2012)Much research has been carried out in recent years as to the most appropriate manner in which to obtain suitable transition probabilities for use in Markovian-based infrastructural deterioration models. Although many ... -
Quantifying Loop Detector Sensitivity and Correcting Detection Problems on Freeways
(American Society of Civil Engineers, 2012)Loop detectors are the most commonly used vehicle detector for freeway management. A loop detector consists of a physical loop of wire embedded in the pavement connected to a sensor located in a nearby cabinet. The sensor ... -
Novel Stochastic Procedure for Designing Yellow Intervals at Signalized Intersections
(American Society of Civil Engineers, 2012)Driver behavior while approaching high-speed signalized intersections at the onset of a yellow indication varies as a function of many parameters including age, gender, perception-reaction time, and acceptable deceleration ... -
Analytical Methods for Deriving Work Zone Capacities from Field Data
(American Society of Civil Engineers, 2012)Work zone capacity is a key variable in scheduling construction activity on roadways. Understanding the effect of different definitions of capacity on the values computed from field data will result in better planning and ... -
Large-Scale Evacuation Using Subway and Bus Transit: Approach and Application in City of Toronto
(American Society of Civil Engineers, 2012)Public transportation systems play a significant role in emergency evacuation. Therefore, this paper is geared towards harnessing subway and bus transit to alleviate congestion pressure during evacuation of busy urban ... -
Pervious Concrete Pavement Performance Modeling Using the Bayesian Statistical Technique
(American Society of Civil Engineers, 2012)Because pervious concrete pavement (PCP) has a porous structure and can percolate water to an underground layer, it has been proposed as a stormwater best management practice (BMP), an environmentally friendly product, and ... -
Optimization Model for Allocating Resources for Highway Safety Improvement at Urban Intersections
(American Society of Civil Engineers, 2012)The authors present a procedure for allocating resources for implementing safety improvement alternatives at urban intersections over a multiyear planning horizon. The procedure, on the basis of optimization techniques, ... -
Integrated Stochastic Approach for Risk and Service Estimation: Passing Sight Distance Application
(American Society of Civil Engineers, 2012)The geometric design of highway elements is based on a set of standards that do not consider the risk levels associated with these designs. Safety elements including risk measures need to be identified and incorporated ... -
Incorporating Priority Preferences into Pavement Maintenance Programming
(American Society of Civil Engineers, 2012)Traditionally, it has been a common practice to apply priority weights to selected parameters in the process of optimal programming of pavement maintenance. However, there are several issues associated with this approach ... -
Transferability of Hurricane Evacuation Choice Model: Joint Model Estimation Combining Multiple Data Sources
(American Society of Civil Engineers, 2012)Inferences on hurricane evacuation behavior are usually drawn through developing empirical models. These models are estimated using data that are specific to a given hurricane context. One important issue, therefore, is ... -
Trade-Off Analysis for Multiobjective Optimization in Transportation Asset Management by Generating Pareto Frontiers Using Extreme Points Nondominated Sorting Genetic Algorithm II
(American Society of Civil Engineers, 2012)Investment decision making in transportation asset management is typically characterized by a wide diversity of asset types for purposes of optimization at overall system level. To enhance investment analysis and decision ... -
Multinomial Logistic Regression Model for Single-Vehicle and Multivehicle Collisions on Urban U.S. Highways in Arkansas
(American Society of Civil Engineers, 2012)Multivariate analysis can be used to identify the effects of several factors on the causes of a crash compared with univariate analysis. This paper uses a multivariate-analysis technique, the multinomial logistic regression ...