Transportation Engineering Journal of ASCE 

About: Transportation Engineering Journal of ASCE is an academic journal. The journal publishes majorly in the area(s): Poison control & Transportation planning. It has an ISSN identifier of 0569-7891. Over the lifetime, 505 publications have been published receiving 3796 citations.

Weigh-in-motion system using instrumented bridges

Abstract: Acquisition of truck axle and gross weight information is necessary for structural and maintenance requirements of bridges and pavements. A system is described combining traffic sensors and strain gages on highway bridge girders to obtain axle and gross weights. A weight prediction algorithm is derived herein that filters out the dynamic components of bridge response and obtains the equivalent static axle weights by a least-square error minimization. It utilizes self-balancing signal conditioners, magnetic tape switches, analog-digital converters, and a minicomputer to record field data on magnetic tape. Output is subsequently obtained on a digital computer. The system showed predictions of gross truck weight and tandem axles consistent with calibration trucks and random traffic. The paper also describes modifications of the system that would allow its routine use in obtaining weigh-in-motion truck data and would also permit weight processing in the field.

Resilient Properties of Subgrade Soils

Abstract: Resilient properties of 50 typical Illinois fine-grained soils were evaluated. Soil resilient properties can be related to soil characteristics (texture, plasticity, organic carbon content, AASHTO group index). Current soil classification procedures do not group fine-grained soils into groups with distinctive resilient properties. Moisture-density conditions and degree of saturation significantly influence the resilient properties of fine-grained soils. Average resilient properties for various soil classification groups were determined. Regression equations were developed for estimating resilient properties based on soil characteristics and degree of saturation.

Fault Movement Effects on Buried Oil Pipeline

Abstract: In earthquake zones pipeline crossings of major active faults are often unavoidable, and movements of these faults can have serious consequences for the pipeline. The ability of a large diameter shallow-buried pipeline to withstand these movements is studied parametrically. Principal results of the study are summarized herein. Parameters considered include variations in: (1)Fault crossing angle; (2)unanchored length of pipe; (3)depth of burial; (4)wall thickness; (5)pipe diameter; and (6)pipe strength. A simplified procedure accounting for inelastic strains is developed for conservatively evaluating pipeline behavior during fault movement. Results indicate that under suitable conditions, a large diameter shallow-buried pipe can withstand large fault displacements. The procedure can be used to examine many cases other than those considered.

Load response of transportation support systems

Abstract: A method of analysis incorporating the finite element method and a failure model for granular and subgrade soils based on the Mohr-Coulomb theory, together with nonlinear material properties has been developed for the purpose of determining stresses and resilient deformations in transportation support systems. Analytical predictions of resilient deformations for an existing pavement agree reasonably well with measured values under impulse loading. Analyses using the proposed method indicate that although strength of granular base and subgrade may not affect their resilient deformations, it could have a significant influence on their permanent deformation behavior under repearted loads.

Airport choice--an empirical study

Abstract: As a determinant of the air passenger's choice of airport, ground accessibility plays a more dominant role than air carrier level-of-service. Thus, the use of differential flight frequencies as a policy tool to shift air passengers from one airport to another would have only limited potential. These conclusions are based upon an empirical study of air passengers' choice of airport in which a series of multinomial logit models were calibrated using air passenger survey data. These models relate the probability that a given airport will be selected to measures of ground accessibility and air carrier level-of-service associated with each available departure airport. A variety of measures for ground accessibility and air carrier level-of-service were tested in various combinations in models which consistently performed well from a statistical standpoint and in which the ground access measure was consistently the dominant variable.