Data Dictionary

Describe the fields in the analysis outputs.

Shapefiles

Describe the fields that exist in shapefiles like neighborhood_ways.shp.

Attribute	Description
ROAD_ID	Unique identifier
NAME	Road name
INTERSECTI	Intersection identifier for the “from” node
INTERSE_01	Intersection identifier for the “to” node
OSM_ID	OpenStreetMap ID
TDG_ID	Unique identifier
FUNCTIONAL	OSM Functional Class
PATH_ID	Identifier for parent path/trail (where applicable)
SPEED_LIMI	Speed limit
ONE_WAY_CA	One way for car traffic
ONE_WAY	One way for bike traffic
WIDTH_FT	Roadway width
FT_BIKE_IN	Bike infrastructure in the “from-to” (forward) direction
FT_BIKE_01	Width of bike infrastructure in the “from-to” (forward) direction
TF_BIKE_IN	Bike infrastructure in the “to-from” (backward) direction
TF_BIKE_01	Width of bike infrastructure in the “to-from” (backward) direction
FT_LANES	Number of travel lanes in the “from-to” (forward) direction
TF_LANES	Number of travel lanes in the “to-from” (backward) direction
FT_CROSS_L	Number of lanes to be crossed at the “to” intersection
TF_CROSS_L	Number of lanes to be crossed at the “from” intersection
TWLTL_CROS	Flag for whether a TWLTL (center turn lane) is present on the cross street
FT_PARK	Flag for whether on-street parking is allowed on the “from-to” (forward) side of the street
TF_PARK	Flag for whether on-street parking is allowed on the “to-from” (backward) side of the street
FT_SEG_STR	Stress for the street segment in the “from-to” (forward) direction
FT_INT_STR	Stress for the intersection crossing at the “to” intersection
TF_SEG_STR	Stress for the street segment in the “to-from” (backward) direction
TF_INT_STR	Stress for the intersection crossing at the “from” intersection

mileage.csv

Total miles of bike infrastructure inside the city boundary, by type. Shared lane markings (sharrows) are not included, because they are not tagged consistently in OpenStreetMap. Segments that extend past the boundary count only the part inside it.

feature_type	What it includes	How it is counted
track	Protected bike lanes: on-street cycleway=track, and separate paths detected as running alongside a road	Per direction. A separate path counts once unless it is mapped as two-way for bikes (oneway=no), then twice
buffered_lane	Buffered bike lanes	Per direction
lane	Bike lanes	Per direction
path	Off-street paths not detected as protected bike lanes	Once: a two-way path counts its length once