This Observer's Manual provides basic background information for persons who
are assigned to observe traffic conflicts in the field. The manual contains
definitions of traffic conflicts which typically occur at intersections as well
as step-by-step instructions for conducting the survey.
Experience observers and engineers will find the manual to be a handy reference
source and an aid in training new personnel. Persons who have not previously
conducted a traffic conflict survey should read this manual carefully as a first
step in learning how to accurately observe and record traffic conflicts.
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1. Report No.
FHWA-IP-88-027
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2.
Government Accession No. |
3.
Recipient's Catalog No. |
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4. Title and Subtitle
Traffic Conflict Techniques for Safety and Operations Observer's Manual
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5. Report Date
January 1989
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6. Performing Organization
Code
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7. Author(s)
M. R. Parker, Jr. and C. V. Zegeer
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8. Performing Organization
No.
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9. Performing Organization
Name and Address
Martin R. Parker and Associates, Inc.
38549 Laurenwood Drive
Wayne, Michigan 48184-1073
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10. Work Unit No.
(TRAIS)
NCP 3A9C0093
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11. Contract or Grant
No.
DTFH61-86-C-00123
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12. Sponsoring Agency
Name and Address
Office of Implementation (HRT-20)
Federal Highway Administration
6300 Georgetown Pike, T-304
McLean, Virginia 22101
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13. Type of Report
and Period Covered
Manual
October 1986 - June 1988
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14. Sponsoring Agency
Code
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15. Supplementary
Notes
FHWA Contract Manager: Peter J. Hatzi (HRT-20)
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16. Abstract
This manual provides basic background information and step-by-step
procedures for conducting traffic conflict surveys at signalized and
unsignalized intersections. The manual was prepared as a training aid
and reference source for persons who are assigned the responsibility
of conducting traffic conflict observations at intersections.
Based on previous research and experiences, the survey techniques described
in this manual provide a standard, cost-effective method for accurately
observing and recording traffic conflicts. The manual contains definitions
with illustrations and examples of conflict types, and instructions
for conducting the field activities, including the time schedules, forms,
and other details.
The results of traffic conflict observations are used to diagnose safety
and operational problems and to evaluate the effectiveness of treatments.
Observer training techniques, as well as procedures for analyzing and
interpreting the results of conflict surveys, are presented in the engineer's
guide (FHWA-IP-88-026).
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17. Key Words
Traffic conflicts, Accidents, Intersections, Manual observations, Accident
surrogates, Training, Evasive maneuvers, Pedestrians
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18. Distribution
Statement
No restrictions. This document is available to the public through the
National Technical Information Service, Springfield, VA 22161.
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19. Security Classification
(of this report)
Unclassified
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20.
Security Classification (of this page)
Unclassified
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21. No. of Pages
40
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22.
Price |
