Vulnerable User Event Sequence - Mass Crash Report Manual

Instructions:

Record the sequence of key events or actions involving the vulnerable road user from immediately before the crash until the point of impact or injury. Base entries on available evidence (e.g., witness statements, physical evidence), avoiding speculation.

Definition:

The events sequence for this crash specific to the vulnerable user.

Rationale:

Capturing the sequence of events specific to the vulnerable user provides critical context for understanding crash dynamics, risk behavior, and environmental interaction. It supports targeted safety improvements such as pedestrian signal timing, midblock crossing treatments, and bicycle infrastructure design. Additionally, this element enhances post-crash analysis by clarifying the user’s behavior and role in the crash sequence, thereby improving data-driven strategies to reduce injuries and fatalities among non-motorized road users.

Code	Attribute	Definition	Example
1	Adjacent to Roadway (e.g., Shoulder, Median)	Indicates the vulnerable user was physically beside the roadway at the time of the crash.
2	Crossing Roadway	Indicates the vulnerable user was entering or crossing the crash location when the crash occurred.
3	Waiting to Cross Roadway	Indicates the vulnerable user was positioned at the edge of the roadway, sidewalk, or median, preparing to cross but not yet entering the travel lane at the time of the crash.
4	In Roadway – Other	Indicates the vulnerable user was in the roadway for a reason other than crossing or traveling along it, such as standing, playing, working, or engaging in a non-transport activity.
5	Walking/Cycling Along Roadway Against Traffic (In or Adjacent to Travel Lane)	Indicates the vulnerable user was walking or cycling facing traffic, either in the travel lane or directly adjacent (e.g., shoulder or unprotected edge), when the crash occurred.
6	Walking/Cycling Along Roadway with Traffic (In or Adjacent to Travel Lane)	Indicates the vulnerable user was walking or cycling in the same direction as traffic, either in the travel lane or directly adjacent (e.g., shoulder or bike lane), when the crash occurred.
7	Walking/Cycling on Sidewalk	Indicates the vulnerable user was traveling on a sidewalk or pedestrian pathway separated from the roadway when the crash occurred.
8	Working in Trafficway (Incident Response)	Indicates the vulnerable user was working in the crash location when the crash occurred.
9	Working on vehicle	Indicates the vulnerable user was working on or providing maintenance to a vehicle within the crash location when the crash occurred.
10	Working – other	Indicates the vulnerable user was working in the crash location when the crash occurred.
11	Pushing Vehicle	Indicates the vulnerable user was pushing a vehicle in the crash location when the crash occurred.
12	Approaching or leaving vehicle	Indicates the vulnerable user was approaching, entering or exiting a vehicle in the crash location when the crash occurred.
13	Traveling straight ahead	Indicates the vulnerable user was proceeding in a straight line along their intended path at the time of the crash.
14	Slowed or stopped	Indicates the vulnerable user had reduced speed significantly or was completely stopped in place when the crash occurred.
15	Turning right	Indicates the vulnerable user was in the act of turning right from their current path or position when the crash occurred.
16	Turning left	Indicates the vulnerable user was in the act of turning left from their current path or position when the crash occurred.
17	Changing lanes	Indicates the vulnerable user was actively moving laterally from one lane or line of travel to another when the crash occurred.
18	Overtaking/passing	Indicates the vulnerable user was in the process of overtaking or passing another road user when the crash occurred.
19	Collision with motor vehicle in transport	Indicates the crash involved contact with a motor vehicle that was in motion under its own power on a roadway or trafficway.
20	Collision with parked motor vehicle, stationary	Indicates the crash involved contact with a motor vehicle that was parked and not in motion at the time of the collision.
21	Collision with door opening of parked car – Front left	Indicates the vulnerable user collided with the driver-side front door of a parked car as it was being opened.
22	Collision with door opening of parked car – Front right	Indicates the vulnerable user collided with the front passenger-side door of a parked car as it was being opened.
23	Collision with door opening of parked car – Back left	Indicates the vulnerable user collided with the rear driver-side door of a parked car as it was being opened.
24	Collision with door opening of parked car – Back right	Indicates the vulnerable user collided with the rear passenger-side door of a parked car as it was being opened.
97	Other	Indicates an event not covered by the previous attributes. Please specify in the narrative.
99	Unknown	Indicates the vulnerable user sequence of events is unknown.