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Need to run smaller DMUs during non-rush hours
The key IMO to making what GO is trying to do work without electrification would be for smaller DMUs to run the same route during non-rush hours.
The out-of-hours GO train should address the need to serve a smaller number of passengers more frequently. Problem is, with double deckers being pulled by huge locomotives, that the for fewer passengers who use such trains, the resulting higher ratio of diesel consumption per unit passenger becomes "uneconomic."
While running passenger trains on mixed freight and passenger sections requires robust strengthening of locomotives and cars, even in the tank train US, the SMART project in California is looking at smaller than Budd like diesel cars with multiple dual door exits.
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