When it comes to infrastructure improvements that encourage more people
to walk or bicycle to transit stations, how long will commuters be
willing to travel? The Federal Transit Administration (FTA) has
officially answered that question, proposing a significant expansion of
the rules governing how close bike-ped projects should be to transit in
order to receive government funding.
The FTA’s new rules ,
released for public comment on Friday, replace the previous definition
of the so-called "structural envelope" surrounding a transit station.
the past, regulators had tended to use 1,500 feet as the distance which
"most people can be expected to safely and conveniently walk to use the
transit service." But the Obama administration, stating plainly that
the current radius is "too short," has proposed expanding it to a
half-mile for pedestrian improvements and three miles for bicycle
In its explanation of the new proposal, the FTA wrote:
The most successful and useful public
transportation systems have safe and convenient pedestrian access and
provide comfortable waiting areas, all of which encourage greater
Distances beyond the walkshed of public transportation stops and
stations may in fact be within the range of a short bicycle trip.
Providing secure parking and other amenities for bicycles and cyclists
at public transportation stops or stations can be less expensive than
providing parking for automobiles.
The proposed regulation also codifies a U.S. DOT definition of "livability" that Streetsblog Capitol Hill took note of 
when it was first mentioned by Transportation Secretary LaHood: "If
people don’t want an automobile, they don’t have to have one."
Public comments on the FTA’s proposal can be filed here .