Search results
Results From The WOW.Com Content Network
The US and Canada departed from UK practice wherein a semaphore blade is devoted to each route (Route Signaling). General North American practice is to group routes by speeds and use a single blade for, say, "medium speed" regardless of the number of routes involved (Speed Signaling). The primary exception to this situation is in the field of ...
In the 1930s, following the integration of train and bus services, the summer train service was trimmed to about a dozen trains each way on all three main routes. This intensive service ran on an entirely single-track system controlled by staff and ticket safeworking, with limited semaphore signalling.
When a train has made a full brake application due to adverse event, or has lost its train air due to a defective valve (a "kicker"), or a broken air line or train separation. The train crew will normally declare that they are "in emergency" over the train radio, thus warning other trains and the dispatcher that there is a problem.
The Isle of Man has a rich transport heritage and boasts the largest narrow-gauge railway network in the British Isles [1] with several historic railways and tramways still in operation. These operate largely to what is known as "Manx Standard Gauge" ( 3 ft [ 914 mm ] narrow gauge ) [ 2 ] and together they comprise about 65 miles (105 km) of ...
The Western Railway (abbreviated WR) is one of the 19 zones of Indian Railways and is among the busiest railway networks in India, headquartered at Mumbai, Maharashtra. The major railway routes of Indian Railways which come under Western Railways are: Mumbai Central – Ratlam , Mumbai Central– Ahmedabad and Palanpur –Ahmedabad.
The New York City Subway currently uses various letters and numbers to designate the routes that trains use over the differing lines in the system. Along with the color corresponding to the route's trunk line, these form a unique identifier for the route, easing navigation through the complex system.
The FIP standard is based on a French initiative in 1982 to create a requirements analysis for a future field bus standard. The study led to the European Eureka initiative for a field bus standard in June 1986 that included 13 partners. The development group (réseaux locaux industriels) created the first proposal to be standardized in France.
MIL-STD-1397 standard was issued by the United States Department of Defense (DoD) to define "the requirements for the physical, functional and electrical characteristics of a standard I/O data interface for digital data." The MIL-STD-1397 classification types A, B and D apply specifically to the Naval Tactical Data System (NTDS).