|From WAMU's Martin DiCaro|
That looks great! A cycletrack protected by a granite curb would be a really great addition to DC's bicycle infrastructure. But here's the problem: the curb-protected part is just 30 feet long. That's it. See here:
The curb-protected portion of the M Street cycletrack is solely for the section of cycletrack where bicyclists are diverted from westbound M Street to eastbound Rhode Island Avenue. The designers did this to help bicyclists through a tricky intersection at M, Connecticut and Rhode Island.
Here's what this section like as a proportion of the entire cycletrack:
So, in conclusion, while there are parts of the M Street cycletrack that will be buffered by car parking and other parts that are buffered by plastic flexposts (and even a part that runs behind a bus stop, which is kinda neat) and other parts that are solely designated by paint, the part that is curb-protected is only a dozen yards out of bike facility that runs 14 city blocks or so.