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A pram ramp with tactile paving that connects a sidewalk to a road. A curb cut , curb ramp, depressed curb, dropped kerb , pram ramp, or kerb ramp is a solid (usually concrete) ramp graded down from the top surface of a sidewalk to the surface of an adjoining street. It is designed primarily for pedestrian usage and commonly found in urban ...
A set of yellow truncated domes on the down-ramp in a parking lot. Tactile paving (also called tenji blocks, truncated domes, detectable warnings, tactile tiles, tactile ground surface indicators, tactile walking surface indicators, or detectable warning surfaces) is a system of textured ground surface indicators found at roadsides (such as at curb cuts), by and on stairs, and on railway ...
The first cloverleaf interchange patented in the US was by Arthur Hale, a civil engineer in Maryland, on February 29, 1916. [3] [4]A modified cloverleaf, with the adjacent ramps joined into a single two-way road, was planned in 1927 for the interchange between Lake Shore Drive and Irving Park Road in Chicago, Illinois, but a diamond interchange was built instead.
Gravity escape ramp: a long, upwardly inclined path parallel to the road. Substantial length is required. Control can be difficult for the driver; problems include rollback after the vehicle stops. Sand pile escape ramp: a short length of loosely piled sand. Problems include sudden, forceful deceleration; sand being affected by weather ...
To load vehicles on the top deck of a double-decker commercial trailer, the rear half of the deck can tilt and be lowered hydraulically, forming a drive-up ramp to the upper deck. The top deck is usually loaded first and off-loaded last since the presence of cars on the lower deck can make it impossible to lower the top deck ramp.
Only cars and trucks are allowed onto freeways, the first of which — Freeway 1 — was completed in 1974. Expressways allow car and truck traffic as well as motorcycles with engines of 250cc or more. Expressways in Taiwan may be controlled-access highways similar to national freeways or limited-access roads.