0
The average speed of a Boston subway is 20.2 Mph. According to the U.S. Department of Transportation Federal Highway Administration "...motorists drive 5 to 10 mi/h (8 to 16 km/h) over the posted speed limit..." So using this report we can say that the posted speed limit would be 10-15 mph
A less nonsensical answer: "Speed limits" on railroads of all kinds, like road speed limits, are different for different stretches of track. It is not common for subway trains to go much over 50 mph, except for some modern systems like the Washington Metro, which has a top speed of 75 mph. It is common for specific sections of a subway to have "posted" speeds (in a railroad context, these are called MAS -- Maximum Allowable Speed) that are much lower because of curves, switches, or other conditions that make higher speeds hazardous.
The Boston subway average speed quoted above (20.2 mph) is probably an end-to-end speed that includes station stops, and consequently does not reflect the actual speed at which trains run between stations. But I don't live in Boston, so what do I know?
What else can I help you with?
Where in Boston is there a speed limit sign not ending in 0 or 5?
Prospect Street, Cambridge, MA. It's off of Mass Ave.
What speed limit is always the same as the posted speed limit?
826 limit
When passing another vechile you can exceed the speed limit?
The speed limit is exactly that - the speed limit. While a reasonable excess of speed might be overlooked when overtaking another vehicle, there is no guarantee. You can be pulled over and cited for speeding, still.
When there is a speed when does that speed limit stop?
When another speed limit sign is reached that changes the limit from the previously posted one.
What is the speed limit in the fast lane?
The speed limit in the fast lane is the same as the speed limit for the road or highway you are driving on.
What is the speed limit for a motorcycle on a highway?
the posted speed limit
When the posted speed limit is 70 mph what is the max speed?
The posted speed limit is the max speed.
What is the distance after a speed limit sign before the speed limit is enforced?
In the UK the speed limit comes into force as soon as you pass the speed limit sign. As such the distance is zero as you should have slowed down to the posted speed limit before passing the sign.
What is the speed limit for a road with humps?
The humps do not affect the speed limit. The speed limit is determined by other rules and signs.
Whats the motorbike speed limit?
Whatever the posted speed limit is.
What is the Speed limit on highway 58 in California?
The speed limit is 55mph.
What is the speed limit where roads are under construction or repair?
There isn't one set, standardized speed for this. The construction site speed limit will vary according to a number of factors, such as number of lanes open, original speed limit on the road, proximity of work crews and equipment to the road, etc.The speed limit is whatever is posted on temporary speed limit signs.Rule of thumb is half the posted speed limit.
