Analysis of train and station use efficiency for Shanghai Metro Line 16 with multi mode trains mixed running in different ratio

Design of turnout points interlocking control system in switchback station for Shanghai Metro Line 16 based on fail-safe principle

“…The scheme proposed can ensure the work of the whole system not be affected even if various situation happens including one of the algorithm lose efficacy in Ground Control Center, wireless communication failure between Vehicle Transponder and Ground Transponder, or one of the 3 module lose efficacy in Turnout Control Machine, and can ensure the real-time failure positioning and rapid repairing even during the system working period without affect the operation. Based on the optimal operation graph in paper [12], the turnout points interlocking control system proposed in this paper has been set up in the experiment line in Tongji Universiy and has already achieved a no-fault operation period of more than 5000 hours. It is of no doubt that the system proposed will be of great value and will be an important reference for the design and construction of turnout points interlocking system used in switchback stations of regional metro lines in the future.…”

“…The switchback dispatching control, to be specific, the turnout points interlocking control for downlink terminal station Lingang New City has been chosen here for detailed discussion. Simulation has been done in paper [12] to analyze the optimal lane using scheme in switchback station Lingang New City when non-stop, part-stop and regular train mixed running in different ratios when 12 pairs of trains per hour have been dispatched from the start station and terminal station. According to the results, when the ratio is set at 1:1:3, only a single switchback line is enough for dispatching in switchback station; but when the ratio is set at 1:1:1 or 1:1:2, LIFO will happen in this station which means in certain time both parttime and regular train are in switchback lanes, as shown in Fig.…”

“…In order to enhance the service quality, three kinds of trains including non-stop, part-stop and regular train has been planned in this line, and the mixed running ratio of those trains will be changing according to the city development and the distributions of travel demands in the future [11][12]. Consider that non-stop train will pick up and drop off passengers in different island platform from part-stop and regular trains in downlink start station Longyang Road, and have a different downlink terminal from them, so the its operation will not affect part-stop and regular trains much.…”