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The yellow trap occurs when the timing of the amber lights (also known as "yellow" lights in the USA) is asymmetric for two-way traffic on a single road: when a vehicle is waiting to turn across oncoming traffic and receives an amber light from the traffic signal, the driver may assume that oncoming traffic also has received an amber light and ...
Following the Moorgate accident, signalling was changed to give an approach-controlled delayed yellow aspect when the line was clear to the buffer-stops and red plus a subsidiary aspect (two white lights at 45 degrees) when the line or platform was partly occupied. [91] [page needed]
The signal was turned off if the block were not "clear"; no current passed through the coherer and a relay turned a white or green light in the cab to red and applied the brakes. [5] The London & South Western Railway installed the system on its Hampton Court branch line in 1911, but shortly after removed it when the line was electrified. [6]
A newly found fault line with a rare slanted angle shows why an earthquake rattled New York City in April harder than its epicenter in New Jersey — and may be a bigger seismic activity threat ...
The Puente Hills thrust fault is the same overall fault network that produced the Whittier Narrows – which measured a 5.9 magnitude, killed eight people and caused some $358 million in damage in ...
“A motorist facing a yellow light can proceed through the intersection if it is unsafe to stop,” according to Georgia personal injury firm Butler Kahn. That driver also has the right-of-way ...
Following the incident, service on the Yellow Line was fully closed and replaced with bus service, initially announced to be for a period of five days. [7] Following the release of the NTSB's preliminary report, the CTA announced that it would reduce the speed limit on the Yellow Line from 55 mph (89 km/h) to 35 mph (56 km/h), and to 25 mph (40 km/h) in the area where the crash occurred. [15]
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