Glossary of Data Variables for Fatal and accident causation ... - ERSO

# Variable Value Notes
R60 Construction /
maintenance zone
1=None
Work package 5 Database Glossary
There were no construction or maintenance zones in the vicinity and directly associated with
the accident.
2 = Construction zone
3 = Maintenance zone
4 = Utility zone
5 = Work zone, type unknown
Roadway construction includes construction within the road or roadside area. The work is
considered long-term - more than one day of work marked with signs, barricades etc. day
and night
Roadway maintenance includes pavement marking, painting guardrail, cleaning ditches,
mowing grass, etc. The work is considered as short-term - one day during daylight
An area for utility work such as electrical work within the right-of-way. The utility company
must perform the work
Use this code when there is insufficient information to distinguish between construction,
maintenance and utility
-888 = Other
-999 = Unknown
R61 Roadway surface type 1 = Concrete
2 = Asphalt
3 = Brick or block
4 = Slag, gravel or stone
5 = Dirt
-888 = Other
-999 = Unknown
A mixture of aggregate, sand, water and cement. Light grey in colour once set.
Includes Tarmacadam. Usually black but can also be red or green.
Road surface composed of fixed individual blocks or bricks.
Non-fixed aggregate material.
Mud tracks or other roadway with no solid surface.
Includes special surface treatments.
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