lane

lane

• description The lane file allocates portions of the physical right-of-way that might be used for travel. It might be a travel lane, bike lane, or a parking lane. Lanes only are included in directed links; undirected links are assumed to have no lane controls or directionality. If a lane is added, dropped, or changes properties along the link, those changes are recorded on the segment_link table. Lanes are numbered sequentially, starting at either the centerline (two-way street) or the left shoulder (one-way street or divided highway with two centerlines).
• path lane.csv
• schema
  • missingValues ['NaN', '']
  • primaryKey ['lane_id']
  • foreignKeys
  • [1]
    • fields ['link_id']
    • reference
    • resource link
    • fields ['link_id']
  • fieldsMatch ['subset']

name	type	description	constraints	categories
lane_id	any	Primary key	{'required': True}
link_id	any	Required. Foreign key to link table.	{'required': True}
lane_num	integer	Required. e.g., -1, 1, 2 (use left-to-right numbering). By convention, the left-most through lane is 1. Left-turn lanes have negative numbers	{'required': True, 'minimum': -10, 'maximum': 10}
allowed_uses	string	Optional. Set of allowed uses that should appear in either the use_definition or use_group tables; comma-separated.
r_barrier	string	Optional. Whether a barrier exists to prevent vehicles from changing lanes to the right.		[{'value': 'none', 'label': 'a vehicle can change lanes, provided that the vehicle-type is permitted in the destination lane'}, {'value': 'regulatory', 'label': 'a regulatory prohibition (e.g., a double-white solid line) against changing lanes, but no physical barrier'}, {'value': 'physical', 'label': 'a physical barrier (e.g., a bollard, curb, Jersey barrier) is in place'}]
l_barrier	string	Optional. Whether a barrier exists to prevent vehicles from changing lanes to the left		[{'value': 'none', 'label': 'a vehicle can change lanes, provided that the vehicle-type is permitted in the destination lane'}, {'value': 'regulatory', 'label': 'a regulatory prohibition (e.g., a double-white solid line) against changing lanes, but no physical barrier'}, {'value': 'physical', 'label': 'a physical barrier (e.g., a bollard, curb, Jersey barrier) is in place'}]
width	number	Optional. Width of the lane, short_length units.	{'minimum': 0}