Network Links

Overview

The network links table contains the network links (roads and highways) used as the base-layer for modeling transportation patterns within a given Replica region. This table can be joined to the seasonal trip table using the unique stableEdgeId field. For instance, street names associated with trips can be obtained by joining the seasonal trips table’s network_link_id to the network link table on this common field.

Network links are the streets or pathways upon which vehicles or people can travel. A single street is typically split into multiple links, with the split points set at street intersections. Two-way streets are modeled with separate network links, one for each direction of travel.

Arterial network links include freeways, highways, primary, secondary, and tertiary segments. The functional classifications defined for the links (freeways, highways, primary, secondary, and tertiary) are derived from OpenStreetMap street data. Most residential streets and service lanes are excluded from this dataset.

Schema

Field Name	Content Type	Sample Value	Description
stableEdgeId	String	1.63807E+19	A unique identifier for the network link.
startLat	Float	34.36907793	The latitude of the starting point of the network link, stored in decimal degrees.
startLon	Float	-101.762211	The longitude of the starting point of the network link, stored in decimal degrees.
endLat	Float	34.36866032	The latitude of the end point of the network link, stored in decimal degrees.
endLon	Float	-101.7656375	The longitude of the end point of the network link, stored in decimal degrees.
streetName	String	Sunrise Passage	The common name of the network link if available. Matches the name assigned by OpenStreetMap.
distance	Integer	318000	The distance (length) of the network link in millimeters.
osmid	String	21250769	The OpenStreetMap ID assigned to the network link.
speed	Integer	20.69196279	The speed limit on the link in miles per hour.
flags	String	[ALLOWS_CAR, ALLOWS_BIKE, ALLOWS_PEDESTRIAN]	A flag denoting what type of vehicles and pedestrian traffic are permitted on the network edge.
lanes	Integer	2	The number of travel lanes on the network link. A "-1" value means we could not parse a lane count from OpenStreetMap (OSM). A "0" value means that the road isn't passable by cars (i.e., it doesn't have the allows_car flag that appears in the "flags" column in the table).
highway	String	secondary_link	The classification of the link based on OpenStreetMap data.
geometry	String	LINESTRING(-93.254892 43.986738, -93.254799 43.993382)	The geometry type for each network link including the start and end latitude and longitude points of the link segment.