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Road Component Width
| Database table | Road_component |
| Database variable name | Road_component_width |
| Introduction date | 2009-07-01 |
| Expiration date | Still active |
Short description
Width measurement of road component.
Values
Decimal number between 0-10 [m].
Description
- Hard shoulder width
- Hard shoulder width is the width of the paved area outside the lanes and can be present on both sides of the road. The hard shoulder is paved but is not meant to be used for traffic. The hard shoulder width is measured from the edge of the paved area to the inside of the line (i.e. road marking) marking the outside limit of the lane or lanes, i.e. the hard shoulder width includes the width of the line. Non-paved roads have no hard shoulder. The hard shoulder width is measured for each roadside at the reference point.
- Lane width
- Lane width is the width of the travel lane. On a road with one lane in each direction, the lane width is measured from the inside of the line marking the outside limit of the lane or lanes, to the center of the road or center of the median line. On a road with two lanes in each direction, the lane widths are measured from the inside of the line marking the outside limit of the lanes to the center of the line dividing the two lanes to the center of the median line. On roads with three or more lanes, the lane width for the center lane or lanes is measured from the center of the left-hand line to the center of the right-hand line. The lane widths for the outer lanes are measured as above.
On 2+1 roads, the lane width for one-lane part is measured between the insides of the lines marking the outside limits of the lane. On the two-lane part, the lane widths are measured as for a road with two lanes in each direction. The lane width is measured for each lane at the reference point.
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