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It would matter if an express train could accelerate fast enough to make the end-to-end trip quicker than a cross-city trip in a typical city.
by keiferski 3y ago
It would matter if an express train could accelerate fast enough to make the end-to-end trip quicker than a cross-city trip in a typical city.
- ta1243 3y agoNo. With no top speed, accelerate for 85km at 1m/s then decelerate for the next 85km/s at 1m/s and that's about 13 minutes with a top speed of about 900mph. 1m/s is the top acceleration you can have for a typical passenger train for comfort purposes. Total area of a 170km*200m city is 34 square km, or a city about 6.5km across. London's Elizabeth line (crossrail) covers a distance of 6.75km from Paddington to Liverpool Street in 11 minutes, with 3 intermediate stops. The circumference of a 6.5km diameter city would be 20km. 20 cross-city lines with decent headway and interchange would give a worst case journey of - 250m to nearest station - 3 minutes walk - 2 minute wait for train - 5 minutes to central station - 200m/3 minutes to appropiate platform - 2 minute wait for train - 5 minutes to destination station - 200m/3 minutes to destination 25 minutes. From anywhere to anywhere.