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Re: SMART Engines To Be Replaced At Nippon Sharyo: Another Trip Across the Country For the DMUs
Author: Art Carney
Date: 10-16-2016 - 16:32
The consequences of a single track system have now become apparent and
documented in the letter to Farhad Mansourian (attached to the SMART
minutes).
Toronto is still operating the trains, because they can handle one train
going out of service.
In the LTK letter to Farhad (Liss Cobb, PE) explained the following:
In the event of this type of engine failure during service, the vehicle pair would lose power. From that starting point the operational results could range from the train proceeding at a limited speed of 30 mph to a delayed arrival at the end of the line, by using the remaining engine in the DMU pair, to a more significant stranding of passengers mid-trip and initiation of a bus bridge. Depending on the severity of the latter worse case however, unlikely, could require a mid-route evacuation of passengers.
Any time SMART has major delays or is forced to rely on a bus bridge, there will likely be a loss of passenger confidence in the system. There is not a “spare” fleet of buses with drivers on standby in the region to supply a bus bridge with sufficient capacity during peak periods, and …, the delay in passengers reaching their destination were a bus bridge to be needed would be unavoidably significant.
documented in the letter to Farhad Mansourian (attached to the SMART
minutes).
Toronto is still operating the trains, because they can handle one train
going out of service.
In the LTK letter to Farhad (Liss Cobb, PE) explained the following:
In the event of this type of engine failure during service, the vehicle pair would lose power. From that starting point the operational results could range from the train proceeding at a limited speed of 30 mph to a delayed arrival at the end of the line, by using the remaining engine in the DMU pair, to a more significant stranding of passengers mid-trip and initiation of a bus bridge. Depending on the severity of the latter worse case however, unlikely, could require a mid-route evacuation of passengers.
Any time SMART has major delays or is forced to rely on a bus bridge, there will likely be a loss of passenger confidence in the system. There is not a “spare” fleet of buses with drivers on standby in the region to supply a bus bridge with sufficient capacity during peak periods, and …, the delay in passengers reaching their destination were a bus bridge to be needed would be unavoidably significant.
