[manquer]

Having a enforced max length on any route especially those with commuter service is not a bad idea, it is the tendency of freight to scale up the number of cars as much as possible for efficiency, passenger services work better shorter with more frequent services.

Yes there are myriad other reasons Amtrak gets delayed, it is not like this is the only bottleneck they have, but that doesn't mean this is not also a key problem.

[tacticus]

long trains are great for reducing cost and reducing total profit by delivering slower less frequent services :\