Here’s the good news: The vast majority of the Pennsylvania Avenue cycletrack will one day be protected by barriers called Park-Its. Via the D.C. Department of Transportation:

On Pennsylvania Avenue NW, illegal U-turns by motor vehicles across the cycletrack (which is located in the center of the street) resulted in 11 crashes in the first 15 months of cycletrack operation. A one-block pilot test of “zebra” barriers showed a reduction in U-Turns. Learning from that experience, we will be installing longer, recycled-rubber curbs on both sides of the entire cycletrack, in order to provide a physical barrier to those tempted to make an illegal U-turn.

DDOT’s Jim Sebastian says the agency “should be able to install them later this summer.”

The bad news is that, for the next undetermined amount of days, what happened on Sunday will likely keep happening.

Justin Antos, who blogs about cycling in D.C., took several photos of vehicle after vehicle after vehicle making illegal U-turns yesterday. The number was likely inflated by the Capital Pride music festival happening on Pennsylvania near the Capitol. But it still demonstrates how, without barriers, drivers will give in to the temptation to make illegal U-turns, even if there are cyclists present.