by Myrtone
walt wrote:I don't know the exact measurements of the curves in the city and suburbs, but the city cars make 90 degree turns from one street into another in a number of places and even the turns inside the subway tunnel are very sharp while the suburban cars do not have a 90 degree turn from one street into another anywhere on the system(this system is overwhelmingly private right of way) The sharpest turn on the suburban system is the loop inside 69th Street Terminal and that is a very gentle turn.Must be quite a large loop, and is there a station in the loop. Are the stops more widely spaced on the Red Arrow lines than on the "city" lines? And are the "suburban" cars actually interurbans? Are does the Red arrow line not have any street stops? In Prague, the minimum curve radius is techinally 15m, but the on street minimum is 18m, curves less than this being confined to depots. In the photos and videos I have seen, I have not seen any 90 dergee curves at their intersections. This may relate to there 500-600m stop spacing.
walt wrote:The use of trolley poles, I understand, was almost an exclusively North American practice. Modern LRV's are not usually equipped with poles, though the city version of the K-Cars are. In the "old" days, pantographs, were used on some heavier interurban lines, and on heavy mainline railroad electrifications, but were not usually found on city equipment. The suburban K-Cars on the former Red Arrow Lines replaced "conventional" trolley pole equipped equipment, and even the high speed C&LE cars, which were operated at speeds approaching 90 MPH on that system were trolley pole equipped.They were used in the British Empire as well, and many European systems, including Prague started with trolley poles.
Also known as Myrtonos