EVALUATING ACCELERATION AND DECELERATION OF HEAVY VEHICLES ON GRADIENTS

Verweij, C A

EVALUATING ACCELERATION AND DECELERATION OF HEAVY VEHICLES ON GRADIENTS

Studies show that the more a vehicle deviates from average road speed, the greater its chances of being involved in an accident. To avoid speed differences on freeways, a traffic engineer always tries to realize gentle slopes on which trucks can maintain their speed. If that is not possible, extra lanes are advisable in most cases. In order to provide useful information for the design and evaluation of speed behavior of heavy vehicles on vertical alignments, The Dutch Ministry of Transport has developed a simple computer program. This program calculates velocities that a vehicle is able to reach at any vertical alignment. With Dutch road designs, this program is particularly useful in evaluating the deceleration of trucks on gradients adjacent to highway tunnels underneath major waterways and in determining the speed of truck acceleration on freeway entries. Based on results of this program, a typical truck for freeway design is determined.

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Authors:
- Verweij, C A
Conference:
- Traffic Safety on Two Continents
- Location: Malmo, Sweden
- Date: 1999-9-20 to 1999-9-22
Publication Date: 2000

Language

English

Media Info

Features: Figures; Photos; References; Tables;
Pagination: p. 227-242
Serial:
- Publication of: Swedish National Road and Transport Research Institute
- Publisher: Swedish National Road and Transport Research Institute (VTI)
- ISSN: 0347-6030

Subject/Index Terms

TRT Terms: Acceleration (Mechanics); Average travel speed; Computer programs; Conferences; Deceleration; Heavy vehicles; Highway design; Highway grades; Highway transportation; Speed distribution; Traffic crashes; Traffic engineering; Traffic safety; Traffic speed; Truck traffic; Trucking safety; Trucks
Geographic Terms: Netherlands
Subject Areas: Freight Transportation; Highways; Motor Carriers; Safety and Human Factors; I82: Accidents and Transport Infrastructure;

Filing Info

Accession Number: 00796101
Record Type: Publication
Report/Paper Numbers: VTI konferens 13A, Part 1
Files: TRIS, ATRI
Created Date: Jul 29 2000 12:00AM