English Glossary - Road

AADT Level of Confidence	Level of confidence for the average annual daily traffic.
AADT Level of Confidence - Truck	Level of confidence for the AADT for trucks.
Animal Type	Type of collision object animal.
Animal Weight	The weight of the collision object animal [kg].
Average Annual Daily Traffic	Average annual daily traffic (AADT).
Average Annual Daily Traffic - Truck	Average Annual Daily Traffic for trucks.
Average Speed on Road for Cars (Day)	Average actual daytime car road speed (km/h).
Average Speed on Road for Cars (Night)	Car night time average speed (km/h).
Barrier Capacity Class	The capacity class of the barrier.
Barrier Clearance	Distance from barrier to road side object.
Barrier Contact Length	The length where the vehcile has been in direct contact with the barrier.
Barrier Deformation Height	Height of deformation [m].
Barrier Deformation Length	Length of deformation [m].
Barrier Height	The height of the barrier measured from the roadway.
Barrier Impacted	Automatic entry.
Barrier Maximal Deformation	Maximal deformation [m].
Barrier Name	Name of barrier.
Barrier Positioning	Location of road barrier.
Barrier Screw Dimension	Barrier screw diameter.
Barrier Screw Quality	The steel quality of the barrier screws.
Barrier Working Width	The working width of the barrier.
Bend Direction at Locus	Road curve direction at point of accident.
Bicycle Lane - Roadway Separation Width [m]	The distance between edge of roadway an the bicycle lane (m).
C-C Length	Barrier C-C length [m].
Camber at Locus	Locus road camber.
Collision Object	Collision object in roadside.
Collision Object ID	Primary key or part of primary key.
Construction/Maintenance Zone	An existing construction/maintenance zone (before, at or after the accident site).
Control of Traffic Control Plan	Traffic control plan review and approval status.
Curve Radius [m]	The road curve radius.
Cycle Crossing Facilities	Cycle crossing facilities existent at accident site.
Design Order - Road
Distance From Road Edge	Measured from the edge of the roadway to the object.
Distance to Rigid Object	The distance between the edge of the road to the first object in the roadside > 10 cm.
Ditch Depth	The depth of the ditch.
Ditch Depth Towards the Back Slope	The depth of the ditch towards the back slope.
Drop-Off Height	The height of the drop-off is the difference in height between the support strip and the hard shoulder.
Element Length	Barrier element length [m].
Element Width	Barrier element width [m].
EuroRAP Star Rating Date	The date of the rating.
EuroRAP Stars	Number of EuroRAP stars.
Horizontal Geometry at Locus	Locus horizontal geometry.
Horizontal Geometry Before Locus	Pre-locus horizontal geometry.
Horizontal Geometry Beyond Locus	Post-locus horizontal geometry.
Junction Travel Direction	Travel direction in junction.
Kerb Height	Height of the kerb.
Lane Cross Fall	Describes carriageway lean across the direction of travel.
Lane Cross Fall According to Inspector	Describes carriageway lean across the direction of travel, according to the inspector.
Lane ID	Automatic value.
Location of the Curve	Road curve location.
Macroscopic Road Surface Condition	Description of macroscopic structure as a whole.
Main Cause of Blind	Vision impairment source.
Maintained Marking	The condition and state of maintenance of the road markings.
Material in Slope	Slope material type.
Material Stiffness	The stiffness of the material in the slope.
Measuring Year	The year the Average Annual Daily Traffic was measured.
Microscopic Road Surface Condition	Road surface condition description.
Original Speed Limit	The speed limit shown on permanent roadway signs.
Pedestrian Crossing Facilities	Type of pedestrian crossing.
Period when Measured (End)	End date for traffic measurements.
Period when Measured (Start)	Start date for traffic measurements.
Recommended Speed Limit	Recommended speed limit (km/h).
Reduced View in Road Side	Reduced view in the road side.
Restricted Sightline, Along Path	Any obtrusions to road user vision, along path.
Restricted Sightline, Left (Intersection)	Any obtrusions to road user vision, left (intersection).
Restricted Sightline, Right (Intersection)	Any obtrusions to road user vision, right (intersection).
Restrictions in Passing or Overtaking	Restriction in passing/overtaking.
Road Administrator	The owner of the road who administrates and maintains it.
Road Component ID	Automatic entry.
Road Component Sub Type	Existing road features.
Road Component Type	Road area type (median, lane, etc.).
Road Component Width	Width measurement of road component.
Road Condition	Prevailing road conditions.
Road Friction Coefficient - Measured Value	Road friction coefficient.
Road Friction Coefficient - Table Value	Road friction coefficient (table value).
Road Gradient [%]	Inclination of the road, longitudinally (%).
Road ID	Unique ID for the road.
Road Label	A label to differentiate between different roads in the same accident.
Road Name	The name of the road.
Road Network Classification	Road classification.
Road Number	The alphanumeric road identifier (i.e. E6, E6.21, lv540, etc.).
Road Surface Contaminants	Road surface contaminants. Dropped from vechicles or natural.
Road Surface Temperature	Roadway temperatrure measurement.
Road Type	The type of road.
Roadside Barrier Set Back	The distance between the carriageway edge line to the barrier.
Roadside ID	Primary key or part of primary key.
Roadway Surface Type	Type of surface on the roadway.
Roadway Width [m]	The edge to edge width of the road.
Roundabout Type	The structure of the existing roadway roundabout.
Separation Strip Material	The material that the separation strip is made of.
Separation Strip Type	Type of separation strip between roadway and bicycle lane.
Sight Restrictions Contributed to the Accident	Determine if a vision obtrusion contributing factor.
Signage Contribute to Accident	Road signage affecting accident.
Single Object Deformable	Collision object derformability.
Single Object Width	The width of the object measured where it was hit.
Skid Control	Time for last road salting or sanding (or other friction support).
Skid Control Status	Status of sand or salt used on the accident road.
Slope Gradient [%]	The gradient describes how steep the slope is. [%]
Slope Length	The width of the near side slope.
Snow Clearance Date	Date of last snow clearance.
Snow Clearance Status	State whether the snow on the road been cleared.
Snow Depth	Snow depth measurement.
Special Lane Type	A lane which is dedicated for a special type of traffic (i.e. a dedicated bus lane).
Specific Equipment on the Road	Equipment presence on road.
Speed at Accident Time	Accident vehicle speeds [km/h].
Speed Limit at Accident Time	Posted speed limit at accident time and site [km/h].
Support Strip Material Stiffness	The stiffened of the material in the support strip.
Support Strip Width	The width of the support strip at the reference point.
Track Depth	Unevenness of the road surface crossways of the roadway [mm].
Track Depth According to Inspector	Unevenness of the road surface crossways of the roadway [mm] according to inspector.
Traffic Control Plan	Maintenance/construction zone traffic control plan.
Traffic Flow at Accident Time - Level of Confidence	Car traffic confidence level for the measurements at accident time.
Traffic Flow when Measured (Day)	Daytime car traffic flow when the average speed was measured.
Traffic Flow when Measured (Night)	Nighttime Car traffic flow when the average speed was measured.
Traffic Light Function	Function of the light signalling system.
Traffic Light Type	Type of traffic light signal.
Traffic Regulation	Relevant existing traffic regulation.
Type of Additional Speed Limit	Temporary speed limit change.
Vertical Geometry at Locus	Locus vertical geometry.
Vertical Geometry Before Locus	Pre-locus vertical geometry.
Vertical Geometry Beyond Locus	Post-locus vertical geometry.
Vulnerable Road User Active	Vulnerable Road User accident involvement.
Vulnerable Road User Facilities	VRU infrastructure (e.g. separated bike path, wide shoulder, etc.)

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