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Appendix E - Key Traffic Incident Definitions
Pages 150-152

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From page 150...
... Incident Timeline27 Figure E.1 illustrates the timeline of a typical incident that might be a crash affecting one or more travel lanes. Not all of these steps might occur in a particular incident, and there may be other interwoven relationships, but this represents the typical sequence for most moderate to serious incidents.
From page 151...
... Level MUTCD Duration Common Cause Frequency Minor (1) < ½ hour Fender bender, disablement, debris Many per day Moderate (2)
From page 152...
... . Further, this graphic presumes a sufficiently serious incident and that a full range of incident management services will be required, almost certainly law enforcement; possibly fire rescue, emergency medical, and hazardous material handling; and wrecker(s)


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