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Road Zipper machine at the Golden Gate Bridge, San Francisco, California. A barrier transfer machine, also known as zipper machine or road zipper, is a type of heavy vehicle that is used to transfer concrete lane dividers, such as Jersey barriers, in order to relieve traffic congestion during rush hours. Many other cities use them temporarily ...
In some systems, a concrete barrier is moved during low-traffic periods to switch a central lane from one side of the road to another; some examples are the five-lane San Diego-Coronado Bay Bridge in San Diego, California, the seven-lane Alex Fraser Bridge on the Fraser River in Vancouver and the eight-lane Auckland Harbour Bridge across the ...
A smart work zone Sensors detect traffic flow through this 15 mile Smart Work Zone and display "travel time" to drivers.. A smart work zone or intelligent work zone refers to a site-specific configuration of traffic control technology deployed within a roadway work zone to increase the safety of construction workers, provide "real-time" travel information, and efficiently route motorists ...
New signs on N.C. 147 encourage people to “merge like a zipper,” as they approach Interstate 85 South. The N.C. Department of Transportation is using the signs as an experiment in the hopes of ...
Traffic barrier with a pedestrian guardrail behind it. Traffic barriers (known in North America as guardrails or guard rails, [1] in Britain as crash barriers, [2] and in auto racing as Armco barriers [3]) keep vehicles within their roadway and prevent them from colliding with dangerous obstacles such as boulders, sign supports, trees, bridge abutments, buildings, walls, and large storm drains ...
In traffic engineering, a merge is the point where two streams of traffic travelling in the same direction from multiple roads or in multiple lanes on the same road are required to merge into a single lane. A merge may be a permanent road feature, for example at the end of a dual carriageway, or a temporary feature, common during roadworks.
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Car manufacturer Stellantis is recalling 211,581 SUVs and pickup trucks ... 211,581 SUVs and pickup trucks over a software malfunction that could cause their electronic stability control systems ...