We currently add a 10m buffer to the proposed bike lane when calculating whether the bike lane intersects geometries in the DDOT/census data. This value was initially chosen to approximate an average road width. @WABA-Comms noted that it seems too small – on larger roads, if you draw a line closer to one side of the road, you may get different statistics than the other side. We should increase the size of the buffer to make sure we capture all the data along larger roads.
@WABA-Comms suggested a 20m buffer. It may be worth visually reviewing the buffer size against our point data (crashes and speeding violations) to double-check.
nickidlugash
commented
5 years ago
We currently add a 10m buffer to the proposed bike lane when calculating whether the bike lane intersects geometries in the DDOT/census data. This value was initially chosen to approximate an average road width. @WABA-Comms noted that it seems too small – on larger roads, if you draw a line closer to one side of the road, you may get different statistics than the other side. We should increase the size of the buffer to make sure we capture all the data along larger roads.
@WABA-Comms suggested a 20m buffer. It may be worth visually reviewing the buffer size against our point data (crashes and speeding violations) to double-check.