At least with SF Muni the bunching of busses issue is more human/contractual/process related. When the bus runs late (because stuff happens) and thereby comple

At least with SF Muni the bunching of busses issue is more human/contractual/process related. When the bus runs late (because stuff happens) and thereby completes it's route late and turns around, and is basically right up against the "next" bus... they send them both out BECAUSE the thought of paying a muni worker to wait for 10 minutes to create a sane space between busses is unthinkable in a penny wise, results foolish budgeting process.