Urban SDK provides data to stream-line and enhance traffic analysis, routing, and planning with live and historical data.

Contents:

Traffic Speed Schema

The dataset is available in JSON, Shapefile, GEOJSON, and CSV file types.

Column Name

Description

Type

Example

link_id

Unique and persistent ID tied to urban sdk road network.

String

16981048

timestamp

15 minute intervals of time data requested

String

2021-10-01 01:00:00

travel_time

The time traveled in seconds.

Float

0.69

confidence

Indicates the proportion of real time data included in the speed calculation. *See below for detailed calculation.

Float

0.7

funclass_id

Indicates classification of the roads depending on the speed, importance and connectivity.

Integer

1

length

Length of road segment in miles

Float

0.0093

county_name

The associated county name.

String

Duval

state_name

The associated state name.

String

Florida

geometry

Geometry that includes latitude and longitudes of row.

String

MULTILINESTRING ((-81.59791 30.24124, -81.59801 30.24135))

Detailed Calculations

Travel Time

The expected travel time along the roadway; will not exceed the legal speed limit.

Confidence

The value of the confidence field indicates the proportion of real time data included in the speed calculation. It is a normalized value between 5 and 40 with the following meaning:

  • confidence = 5 indicates gap-filled speeds

  • 10 < confidence <= 15 indicates suggestive speeds

  • 20 < confidence <= 25 indicates highly suggestive speeds

  • 30 < confidence <= 35 indicates confident speeds

  • confidence = 40 indicates highly confident speeds

This field can be used to identify whether the data for a location is derived from real time probe sources or historical information only.



funclass_id

The functional class is used to classify roads depending on the speed, importance and connectivity of the road.

  • Must satisfy: 1 ≤ value < 5

The value represents one of the five levels:

  • 1: allowing for high volume, maximum speed traffic movement

  • 2: allowing for high volume, high speed traffic movement

  • 3: providing a high volume of traffic movement

  • 4: providing for a high volume of traffic movement at moderate speeds between neighborhoods

  • 5: roads whose volume and traffic movement are below the level of any functional class

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