Based on this picture of rows of temporary bike racks, all filled, it looks like MS 51’s Bike-To-School Day was a big hit (photo via Lara Lebeiko of Bicycle Habitat, which provided volunteers for the event). Escorted rides, or “bike buses,” took students from Sunset Park, Carroll Gardens and Windsor Terrace/Kensington to the Park Slope school and back. During the day, a bike skills and safety course helped teach the students how to ride on their own.

MS 51 has been holding a Bike-To-School Day event since 2010. Check out Streetfilms’ coverage of the school’s first year of festivities here.

But even a coordinated effort to promote biking to school didn’t eliminate one of the most persistent perils on the route to MS 51. In the morning, Fifth Avenue is a mess of double-parked parents dropping off their kids out in front of school. The bike lane in front of the school is routinely impassible, and today was no exception, as the below photo from Streetsblog reader Car Free Nation illustrates.

It’s great to see a city school promoting cycling to its students. To keep them riding, though, it looks like the city needs some traffic enforcement.