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Results tagged with rail
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user 90
Questions pertaining to railroads and railroad tracks
9
votes
What are the engineering principles for a train to get electricity from the railway
Where a third rail system is used on the Earth's surface a dedicated rail corridor, either elevated or barricaded, as proposed for maglev systems, needs to be used to prevent issues associated with potential … To alleviate such problems it is easier to have a third rail for underground rail systems. …
- 9,752
2
votes
Why are rail signals overbuilt compared to road signals?
For a start, not all rail line traffic signals are like the ones in your picture - there is no uniformity. … By having traffic lights over the road like that, at rail intersections, makes the intersection more noticeable to road users. …
- 9,752
33
votes
Accepted
Why does the Channel Tunnel enter the ground around 10 km from the coast?
For reasons of maintaining a comfortable gradient for the TBMs and the rail line and to position the tunnels in the lower part of the chalk marl combined with the width of the high ground on the coast …
- 9,752