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A expansion joint, or movement joint, is an assembly designed to hold parts together while safely absorbing temperature-induced expansion and contraction of building materials. They are commonly found between sections of buildings , bridges , sidewalks , railway tracks , piping systems , ships , and other structures.
An unused highway is a highway or highway ramp that was partially or fully constructed, but went unused or was later closed or part of a future expansion. An unused roadway or ramp may often be referred to as an abandoned road, ghost road, highway to nowhere, stub ramp, ghost ramp, ski jump, stub street, stub-out, or simply stub. [2]
OpenStreetMap map of the Pedway Sign of the Chicago Pedway. An underground Pedway tunnel Inside a Pedway bridge between the Ogilvie Transportation Center and 2 North Riverside Plaza The Chicago Pedway is a network of tunnels , ground-level concourses and bridges in Chicago, Illinois connecting skyscrapers, retail stores, hotels, and train ...
The Pershing Map FDR's hand-drawn map from 1938. The United States government's efforts to construct a national network of highways began on an ad hoc basis with the passage of the Federal Aid Road Act of 1916, which provided $75 million over a five-year period for matching funds to the states for the construction and improvement of highways. [8]
Highway engineering (also known as roadway engineering and street engineering) is a professional engineering discipline branching from the civil engineering subdiscipline of transportation engineering that involves the planning, design, construction, operation, and maintenance of roads, highways, streets, bridges, and tunnels to ensure safe and effective transportation of people and goods.
The law restricting pedestrians from walking on roads has been revised to let pedestrians use roadways in certain situations. New state law allows walking on roads when sidewalks are blocked or unsafe
The 1967 design of Milton Keynes, with its (national speed limit) grid roads at 1 km intervals containing 'organic' road lay-out grid-squares, was strongly founded on the 'street hierarchy' principle. The 2006 expansion plans for Milton Keynes will abandon this model in favour of "mixed-use traditional British city streets". [citation needed]
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 ...