Cycling and walking trips in the US have gone up by 25% since 2001, according to a report released by the Department of Transportation (DOT).

The report claimed that the number of cycling trips increased from 1.7 billion in 1990 to 4 billion in 2009, and the walking trips have more than doubled during this period.

The current study is expected to be a 15-year status update of the 1994 National Cycling and Walking Study.

The study also tries to find ways to integrate and increase walking and cycling into people’s transportation, according to DOT.

From 1993 to 2008, cycling fatalities decreased by 22.3% and pedestrian fatalities dropped by 12% surpassing the goal in the 1994 report.

However, in 2008 there were 4,378 pedestrians and 716 cyclists killed in roadway crashes.