Research was conducted to generate design vehicle characteristics for large or full-size school buses. Characteristics that were measured include length, width, overhangs, and the turning radius and path for 90° and 180°turns. The researchers observed the paths of the inner rear tire, the outer front corner, the outer front tire, and the outer rear corner. The paths observed in the field were contrasted to those generated by computer-aided design software. The path of the outer rear corner was found to be a significant consideration during the initial part of a turn. The researchers recommended adoption of a more intuitive terminology to describe the various turning paths.
Get full access to this article
View all access options for this article.
References
1.
A Policy on Geometric Design of Highways and Streets. AASHTO, Washington, D.C., 1994.
2.
1995 National Standards for School Transportation. Central Missouri State University, Warrensburg, 1995.
3.
HealdK. L.Use of the WHI Offtracking Formula. In Transportation Research Record 1052, TRB, National Research Council, Washington, D.C., 1986, pp. 45–53.
4.
1993SAE Handbook, Volume 4: On-Highway Vehicles and Off-Highway Machinery. Society of Automotive Engineers, Inc., Cooperative Extension, Warrendale. Pa.
5.
SchusterJ. J., and TerryP. A.. Tractor-Trailer Reverse Movement Path. ITE Journal, Nov.1996, pp. 38–43.
6.
American Institute of Architects Architectural Graphic Standards, 9th Edition. John Wiley and Sons, Inc., New York, 1994.
7.
HoronjeffR., and McKelveyF. X.. Planning & Design of Airports, 4th ed.McGraw-Hill, New York, 1994.
8.
AutoTURN User’s Guide. Transoft Solutions, Richmond, British Columbia, Canada, 1994.
