Construction/Maintenance Zone

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Road

Database table Road
Database variable name Construction
Introduction date 2009-07-01
Expiration date Still active

Short description

An existing construction/maintenance zone (before, at or after the accident site).

Values

2 None
3 Construction Zone
4 Maintenance Zone
5 Utility Zone

Description

This variable describes if there is a construction-, maintenance- or utility-zone before, at or after the accident site.

Whether a construction, maintenance or utility zone is present or not is noted for each road.

None
There is no contruction, maintenance or utility zone before, at or after the accident site.
Construction Zone
There is a construction zone before, at or after the accident site. A construction zone includes construction within the road or roadside area and the work is considered long-term if it is more than one day of work and it is marked with signs, barricades etc., day and night. The work is considered as stationary or short-term if it is one day during daylight, e.g. replacement of barriers, pavement work.
Maintenance Zone
There is a maintenance zone before, at or after the accident site. A maintenance zone includes work that is considered intermittent, i.e. it is carried out at an uneven speed, with short stops or at a considerably lower speed than other traffic, e.g. pavement marking, exchange of road signs and clearing of vegetation in the road side.
Utility Zone
There is a utility zone before, at or after the accident site. A utility zone includes work that is considered mobile, i.e. it is carried out at an even speed along the road, e.g. plowing and salting.



Short description


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