[jacobwil]

Are you saying that there are zero people that take the MARC commuter rail out of Odenton and transfer to Metro?

People that would (without Metro) have no way of getting from MARC to their DC jobs would disagree with you that Metro it doesn't reduce congestion on 295 and other congested roads that pass through Anne Arundel.

[rayiner]

Anne Arundel’s share of the Metro commitment is about $13 million (probably more because the county has higher median income than Maryland as a whole). Just 3,000 daily riders board at Odenton. Let’s say 2,000 are going to DC and 1,000 to Baltimore. That means the county is paying $6,500 per year to facilitate Metro connnections for each rider. 295 moreover carries over 100,000 cars per day (more than double the entire MARC system). Another 2,000 would be a rounding error.

[Anechoic]

Another 2,000 would be a rounding error.

2,000 would be 2%. That's in the range of a traffic change (1% - 5%) that would degrade the Level of Service of a highway from D (design goal) to E or F.

It doesn't take much of a reduction in traffic to significantly improve free-flow. Or, conversely, it doesn't take much an increase in numbers to make traffic suck more than it already does.