Journal of Transportation Engineering, Part A: Systems: Recent submissions
Now showing items 3861-3880 of 4147
-
Alternative Solution Charts for AASHTO Pavement Design Guide
(American Society of Civil Engineers, 1988)Simplified charts are presented to solve the AASHTO Pavement Guide equations for flexible and rigid pavement design. The charts incorporate all the variables included in the flexible equation. Some variables in the rigid ... -
Discussion of “<i>Development of Highway Accident Hazard Index</i>” by Lon‐Li David Shen (September, 1986, Vol. 112, No. 5)
(American Society of Civil Engineers, 1988) -
Chemistry of Deicing Roads: Penetrating Ice
(American Society of Civil Engineers, 1988)Experimental measurements of the rates at which sodium chloride, calcium chloride, urea, and calcium magnesium acetate (CMA) penetrate ice are consistent with a theory developed to predict this rate. These measurements and ... -
Benefit Analysis for Urban Grade Separated Interchanges
(American Society of Civil Engineers, 1988)A procedure for evaluating the user benefits from highway improvement is demonstrated through a hypothetical case study. A comparison is made between an urban‐grade separated interchange and an at‐grade intersection in ... -
New Nondestructive Pavement Evaluation Method
(American Society of Civil Engineers, 1988)Rapid nondestructive evaluation of pavements is needed to help maintain highways and airport runways. A review of current techniques for measuring pavement profile, texture, and deflection under load is conducted. Rapid ... -
Load Factor Method for Dynamic Track Loadings
(American Society of Civil Engineers, 1988)Design of track structural components and foundations is based upon design loads higher than the nominal static values. These design loads generally have been determined using dynamic impact factors as multipliers of the ... -
Optimizing Rural Road Conservation Expenditures
(American Society of Civil Engineers, 1988)A methodology of optimizing expenditures for rural road maintenance and rehabilitation is presented. The optimum schedule for pavement overlay and rehabilitation is determined, resulting in minimal costs during the road's ... -
Closure to “<i>Optimizing Dead Mileage in Urban Bus Routes</i>” by Vijay Sharma and Satya Prakash (January 1986, Vol. 112, No. 1)
(American Society of Civil Engineers, 1988) -
Discussion of “<i>Optimizing Dead Mileage in Urban Bus Routes</i>” by Vijay Sharma and Satya Prakash (January 1986, Vol. 112, No. 1)
(American Society of Civil Engineers, 1988) -
Finite Difference Solution for Plate on Elastic Solid
(American Society of Civil Engineers, 1988)A new adaptation of an existing finite difference solution to the problem of a plate resting on an elastic solid foundation is introduced (program FIDIES). Square elements are employed throughout the slab, and external ... -
Sensitivity of Level of Service in Shorthaul Market
(American Society of Civil Engineers, 1987)Current transportation planning requires a better understanding of the mode choice behavior of intercity passengers in the short‐haul market. Considerable work has been completed on the topic for the medium and long‐haul ... -
Partial Flow Properties in Circular Sewers
(American Society of Civil Engineers, 1988)Partial flow problems in circular pipes are commonly solved using standard hydraulic element charts or nomograms. These methods are tedious, monotonous, and subject to errors. The widespread availability of the desktop ... -
PASSER II‐84 Microcomputer Environment System—Practical Signal‐Timing Tool
(American Society of Civil Engineers, 1987)The development of the PASSER II‐84 microcomputer environment system is summarized. It was designed in research conducted jointly by the Texas Transportation Institute (TTI) and the Texas Department of Highways and Public ... -
Inventorying Airport Air Pollutant Emissions
(American Society of Civil Engineers, 1988)This paper presents a detailed, accurate method for assessing air pollutant emissions from airport operations for the purpose of environmental assessment. Sources may include commercial aircraft, small general aviation ... -
Urban Transportation Planning since the Federal‐Aid Highway Act of 1962
(American Society of Civil Engineers, 1987)This paper reviews urban transportation planning in the United States since passage of the Federal‐Aid Highway Act of 1962. That act created the federal mandate for a continuing, comprehensive urban transportation planning ... -
Behavior and Design of Buried Very Flexible Plastic Pipes
(American Society of Civil Engineers, 1987)Spangler's equation and Watkins' formula, when used in the current form for very flexible pipes, give poor results. Modifications are necessary to extend their use to very flexible plastic pipes. Simple modifications, based ... -
Design Method for Parallel Traffic Noise Barriers
(American Society of Civil Engineers, 1987)One of the large analyses in this country of the need for sound absorptive treatment on highway noise barriers was conducted on the Interstate 440 project in Nashville, Tennessee. Special considerations had to be made of ... -
Left‐Turn Adjustment Factor for Permitted Phasing
(American Society of Civil Engineers, 1987)The left-turn adjustment factor, as introduced in the 1985 Highway Capacity Manual, for opposed left-turns at a signalized intersection is discussed. The special case involving an exclusive left-turn lane without a separate ... -
Tensile Fracture and Fatigue of Cement‐Stabilized Soil
(American Society of Civil Engineers, 1987)Portland cement‐stabilized soil is widely used as a base material for roads, airfields, and similar structures. Cracking in this material is studied using fracture mechanics concepts. Fracture toughness in the form of the ... -
Discussion of “<i>Multi‐Attribute Utility in Pavement Rehabilitation Decisions</i>” by Satish Mohan and Adil Bushnak (July, 1985, Vol. 111, No. 4)
(American Society of Civil Engineers, 1987)