jhm
Well-Known Member
Yes, peak time capacity is important. If you replaced 100 40-passenger buses with 400 10-person vans, you'd have the same peak capacity. But you would need 400 drivers instead of just 100. UNLESS the vans are autonomous. So autonomy breaks down one of the problems with managing peak loads. In off-peak hours the autonomous vans can take turns charging or getting maintained. There is no need to keep all 400 vans circulating when the demand has fallen from 4000 riders down to 1000 riders. But if you have a fleet of 100 buses instead, you may still need to keep most of those circulating even when demand drops well below 1000 riders. So when demand is at 1000 riders, I'd rather have 200 vans circulating than 100 buses. That's got to be much cheap in terms of wear and tear on vehicles and fuel. But labor costs, if these are to be driven by humans, would tilt the other way.The problem with public transport sizing is the huge demand around peak times and much lower demand during off peak. Replace public transport with road size, for eg.
Ofcourse if the public transport is running at peak time with 25% occupancy, years after starting service, there is a problem.
BTW, I think the real watershed will be in telecommuting