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A street light, light pole, ... angle lights enabled the doubling of distance between ... not illuminate the road, a light on the outside of the curve is often ...
A 30 mph speed limit reminder road sign. Used when there is insufficient street lighting for a road to legally have an automatic 30 mph speed limit. In the UK Highway Code for England, Scotland and Northern Ireland, a built-up area is a settled area in which the speed limit of a road is automatically 30 mph (48 km/h). In Wales it's 20 mph (32 ...
The alignment is the route of the road, defined as a series of horizontal tangents and curves. The profile is the vertical aspect of the road, including crest and sag curves, and the straight grade lines connecting them. The cross section shows the position and number of vehicle and bicycle lanes and sidewalks, along with their cross slope or ...
If a driver is facing a red light, no matter if the light is on a crossbar in the center of the intersection, mounted on a post across the street, or on the curb to the driver’s right, the ...
Road closed (distance) miles ahead, local traffic only. R11-3a Street closed (distance) miles ahead, local traffic only. ... Reverse curve with side road (left)
The cross slope of both the left and right shoulders should be between 2% and 6%, but not less than the main lanes. Median width: The median should have a width of least 50 feet (15 m), and preferably 60 feet (18 m), in rural areas, and 10 feet (3.0 m), plus a barrier, in urban or mountainous areas.
The highest design speed for a road or segment is the design speed of its least favorable part. For example, given a road segment with a 60 miles per hour (97 km/h) design speed except for a curve with a 45 miles per hour (72 km/h) design speed, the entire segment would have a 45 miles per hour (72 km/h) design speed.
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