Adam Voiland

For decades, dueling camps of cycling advocates have feuded about how to best accommodate riders. Some have pushed for the construction of Dutch-style cycle tracks, arguing that separated lanes make bicycling safer and less intimidating, while others have insisted such infrastructure isolates riders and makes cycling more dangerous than simply remaining within the flow of traffic.

The critical multi-year transportation bill, which lawmakers have sidelined since last summer as they’ve quarreled about how to pay for it, looks to be back on the agenda after President Obama’s pugnacious Labor Day speech, in which he called on Congress to ramp up investment in transportation. The broad outline of Obama’s plan calls for rebuilding 150,000 miles of roads, constructing 4,000 miles of rail, and rehabilitating 150 miles of runway over the next six years.

At an event billed as a “town hall” held at USDOT headquarters yesterday, top department officials answered questions about the future of the nation’s road, rail, bus, and bike networks -- even as the prospects of passing a comprehensive transportation reauthorization bill anytime this year appear as dim as ever. Already, reauthorization of the transportation bill is nearly a year overdue, as lawmakers have failed to muster the will to pay for it.