STATION PLACEMENT
ADAPTIVE FLUX MORPHOLOGIES
5.8 5-59 Equal distribution method.
1 1 The estimated maximum length vehicle length was for four rail vehicles and at 400 feet.
Maximum length of train
2 This steps estimates the total trains per hour based off the length. A total of 47 trains was assumed for vehicles at 400 feet.
52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 180 m 600 ft
54,000
Capacity (Passengers / Hr / Track)
Trains / H
3 Capacity of passengers per track. From the train length the maximum number of passengers is assumed at 28,000 people per hour per track line.
47 TRAINS / H
150 m 500 ft
120 m 400 ft
90 m 300 ft
60 m 200 ft
50,000 46,000 42,000 38,000 34,000 30,000
LIGHT RAIL
26,000 22,000 18,000
HEAVY RAIL
14,000 10,000 180 m 600 ft
150 m 500 ft
Train Length
Equal Distribution Method The equal distribution method uses the design capacity formula from the Rail Transit Capacity Manual (Fig. 5-57). This equation determines the design capacity based off the maximum trains per hour and the respective passenger capacity of these trains. -Passenger Capacity For this process, the first step was to assume the maximum length of a rail vehicle and then find the total capacity of passengers based on this length. This design method was used twice, the first attempt assumed a train length with light rail restrictions and the second with heavy rail. This decision was based on the assumption that a heavy rail system would need to be design below grade. However, after reviewing the case studies and examples of locations of their rail tracks, it was decided that both heavy and light rail could be used above or below ground, and the
28,000 PASSENGERS / HR / TRACK 120 m 400 ft
90 m 300 ft
60 m 200 ft
Train Length
deciding factor should have been the percentage of the population that is expected to use the rail system. Therefore the second attempt assumed capacities of a heavy rail system. -Maximum train length The first step in this method was to assume the maximum train length (Fig. 5-59). In the first attempt, we assumed the maximum length of four light rail vehicles at 150 metres as suggested in the guidelines. This could accommodate about 27% of the commuting population, which is about 3.3 million people daily. In the second attempt with heavy rail restrictions, the assumed length of the train was 200 metres at eight vehicle lengths. This accommodated 31% of the population at around 3.8 million people daily. The change in the train vehicle length affected the maximum number of trains per hour, which resulted in a slightly different waiting time between each station.
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