00625326

Component

http://onlinepubs.trb.org...trr/1992/1356/1356-007.pdf

https://scholar.google.co...furt&publication_year=1992

A study was conducted to determine the differences in performance between 102-in.-wide and 96-in.-wide trucks and the impact that these trucks have on other traffic. Trucks that were studied primarily included random trucks in the traffic stream, although some control truck data were also collected to account for driver differences. Truck data were collected on rural two-lane and multilane roads that included curve and tangent sections and a variety of roadway widths and traffic conditions. The data collection effort resulted in approximately 100 hr of videotape and 9,000 slides from which various measures of effectiveness (MOEs) were extracted. Several MOEs were used to test for the operational effects of differential truck widths, lengths, and configurations. Such measures included (a) lateral placement of the truck and the opposing or passing vehicle, (b) lane encroachments by the truck or opposing vehicle, and (c) edgeline encroachments by the truck or opposing vehicle. Analysis of variance and regression analysis techniques were used to determine the significance of and the relationship among the variables used. The results revealed that the wider trucks had significantly higher rates of edgeline encroachments and tended to drive closer to the centerline than the narrower trucks. The wide ranges for a number of the operational measures for a given route and truck type also revealed the importance of driver influence on truck operations.

This paper appears in Transportation Research Record No. 1356, Operational Effects of Geometrics and Geometric Design. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01404971

English

p. 56-65

1992

Transportation Research Record

0309052203

Figures (6) ; References (13) ; Tables (3)

Analysis of variance; Data collection; Lateral placement; Length; Measures of effectiveness; Motor vehicles; Multilane highways; Operations; Regression analysis; Right of way (Land); Rural highways; Size; Truck drivers; Trucks; Two lane highways; Vehicle length; Videotapes; Width

Vehicle configurations

Administration and Management; Data and Information Technology; Design; Highways; Motor Carriers; Planning and Forecasting; Vehicles and Equipment; I21: Planning of Transport Infrastructure; I91: Vehicle Design and Safety

TRIS, TRB, ATRI

Nov 16 1993 12:00AM

• COMPARISON OF OPERATIONAL PARAMETERS FOR CONVENTIONAL AND SINGLE-POINT DIAMOND INTERCHANGES
• GEOMETRIC INCONSISTENCIES AND ACCIDENT EXPERIENCE ON TWO-LANE RURAL HIGHWAYS
• GUIDELINES FOR OFFSETTING OPPOSING LEFT-TURN LANES ON FOUR-LANE DIVIDED ROADWAYS
• MITIGATION OF SIGHT-DISTANCE PROBLEM FOR UNPROTECTED LEFT-TURNING TRAFFIC AT INTERSECTIONS
• OPERATIONAL EFFECTS OF NONTRAVERSABLE MEDIANS AND TWO-WAY LEFT-TURN LANES: A COMPARISON
• RATIONAL APPROACH FOR GEOMETRIC DESIGN OF SPEED-CONTROL ROAD HUMPS
• ROADWAY DESIGN STANDARDS TO ACCOMMODATE LOW-CLEARANCE VEHICLES (WITH DISCUSSION AND CLOSURE)
• SAFETY EFFECTS OF GEOMETRIC IMPROVEMENTS ON HORIZONTAL CURVES
• SIGHT-DISTANCE DESIGN FOR CURVED ROADWAYS WITH TANGENTIAL INTERSECTIONS