Various Volume Definitions with Conflicts at Unsignalized Intersections
Publication: Journal of Transportation Engineering
Volume 126, Issue 1
Abstract
This paper presents data for 15 four-leg unsignalized intersections. The data concerning traffic volume and conflicts of four levels of severity grades were collected by the use of a video camera. The main objective of this paper is to examine the correlation between various volume definitions and conflicts. By adopting the approach volume rather than the total entry volume, it was found that there is always a basic volume that influences the occurrence of certain types of conflicts. This basic volume is made obvious when considering its effects on the serious severity grades G3 and G4 of the influenced conflict type. It was further concluded that the incorporation of other volume combinations, as an exposure measure, may provide misleading correlation between volume and conflicts, due to incorporating irrelevant traffic volume into the correlation.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Crowe, E. C. (1989). “Traffic conflict values for three-leg, unsignalized intersections.” Transp. Res. Rec. 1287, Transportation Research Board, Washington, D.C., 185–194.
2.
Gluaz, W. D. (1978). “Discussion paper on design consideration of traffic conflict survey.” Transp. Res. Rec. 667, Transportation Research Board, Washington, D.C., 65–66.
3.
Gluaz, W. D., et al. (1977). “Critique of the traffic conflicts technique.” Transp. Res. Rec. 630, Transportation Research Board, Washington, D.C., 32–38.
4.
Gluaz, W. D., and Migletz, D. J. ( 1980a). “Traffic conflicts technique for use at intersections.” NCHRP 219, Transportation Research Board, Washington, D.C.
5.
Gluaz, W. D., and Migletz, D. J. ( 1980b). “Application of traffic conflict analysis at intersections.” NCHRP 219, Transportation Research Board, Washington, D.C.
6.
Gluaz, W. D., and Migletz, D. J. (1985). “Expected traffic conflict rate and their use in predicting accidents.” Transp. Res. Rec. 1026, Transportation Research Board, Washington, D.C., 1–12.
7.
Haure, E., and Garder, P. (1986). “Research into the validity of traffic conflicts technique.” Accident Analysis and Prevention, 18(6), 471–481.
8.
Hofner, K. J., and Shutzenho, F. E. R. ( 1980). “Conflict research in traffic.” SR 557, Transport and Road Research Laboratory (TRRL), 124–126.
9.
Hyden, C. ( 1987). “The development of a method for traffic safety evaluation: The Swedish traffic conflicts technique.” Bull. 70, Lund Institute of Technology.
10.
Katamine, N. M., and Al Salman, N. (1999). “Traffic conflict analysis at four-leg unsignalized intersections.” Dirasat J. Univ. of Jordan, Jordan (in press).
11.
Katamine, N. M., and Hamarneh, I. M. (1998). “Use of the traffic conflict technique to identify hazardous intersections.” Road and Transport Res., Australia, 7, 17–35.
12.
Malaterre, G., et al. ( 1980). “Conflicts and accidents as tools for safety as diagnosis.” SR 557, Transport and Road Research Laboratory (TRRL), 43–63.
13.
McDowel, M. R. C., et al. ( 1983). “Gap acceptance and traffic conflict simulation as a measure of risk.” SR 776, Transport and Road Research Laboratory (TRRL).
14.
McGuiyan, D. R. D., et al. (1980). “The use of relationship between road accident and traffic flow in `black spot' identification.” Traffic Engrg. and Control, 448–452.
15.
Muhlard, N. (1985). “Behavior in traffic conflict situation.” Accident Analysis and Prevention, 17(2), 179–197.
16.
Parker, M. R., and Zegeer, C. V. ( 1989). “Traffic conflict technique for safety and operations.” Engineering Guide, FHWA-IP-88-26, Federal Highway Administration, Washington, D.C.
17.
Perkins, S. R., and Harris, J. F. (1967). “Traffic conflict characteristics; accident potential at intersections.” Highway Res. Rec. 225, Transportation Research Board, Washington, D.C., 35–43.
18.
Russam, K., and Sabey, B. E. ( 1972). “Accident and traffic conflicts at junctions.” LR 514, Transport and Road Research Laboratory (TRRL).
19.
Spicer, B. R. ( 1972). “A traffic conflict study at an intersection on the Andoversford by-pass.” LR 520, Transport and Road Research Laboratory (TRRL).
20.
Spicer, B. R. ( 1973). “A study of traffic conflict at six intersections.” LR 551, Transport and Road Research Laboratory (TRRL).
21.
Spicer, B. R., et al. ( 1980). “Variation in vehicle conflicts at a `T' junction and comparison with recorded collision.” SR 545, Transport and Road Research Laboratory (TRRL).
22.
Tanvir, I. Q. ( 1983). “Validity and use of traffic conflict technique study in the Kingdom of Saudi Arabia,” MS thesis, University of Petroleum and Minerals.
23.
Walsh, K., et al. (1986). “Traffic conflict studies a tool for accident assessment.” Hwy. and Transp., 33(1), 22–25.
24.
Yauch, P. J., and Parsonson, P. S. (1978). “Discussion paper on traffic conflicts as diagnostic tool in highway safety.” Transp. Res. Rec. 667, Transportation Research Board, Washington, D.C., 55–57.
25.
Zegeer, C. V., and Deen, R. C. (1978). “Traffic conflict as a diagnostic tool in highway safety.” Transp. Res. Rec. 667, Transportation Research Board, Washington, D.C., 48–55.
26.
Zimolong, B. ( 1980). “Traffic conflict at urban junction.” SR 551, Transport and Road Research Laboratory (TRRL), 130–139.
Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 126 • Issue 1 • January 2000
Pages: 27 - 34
History
Received: Jul 16, 1998
Published online: Jan 1, 2000
Published in print: Jan 2000
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.