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[quote=Anonymous][quote=Anonymous]

If it was that simple. The issue is the variance; often buses don't come for 35 min and then 3 come within 2 minutes. So it ends up being more like 45min. I take the D2 to work, so the family car is just sitting there. If the kid wants to pay for gas, they'll do so (on the condition they ferry kid 2). But hey, DC decided to put their HS halfway across down, almost in Maryland. I think Wilson has the largest catchment area of any DC school.[/quote]

This kind of bus arrival variability is a sign of a poorly-run bus system that doesn’t care about staying on schedule.

If a transit agency cares about on-time bus arrivals they MUST express buses to maintain spacing.  The problem is this: buses start out evenly spaced. But as soon as a gap widens a little bit, that bus starts having to pick up more and more riders, while the close bus behind it picks up few because the bus in front of it got them all.  
That is a feedback loop that causes buses to cluster.

Fixing clustering is well worked out in cities with good bus systems: you express the bus with a big gap, skipping some stops to get the gaps even again.

DC does not have a bus system that cares about on-time arrivals so they don’t express.[/quote]

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