Geopath Streetlytics Data Specification

Data Item:      Volume and Speeds

Format: CSV

Structure: Delivered as a set of 88 CSV files segmented by region (22) and day type (4). Each file will include a header row. Any supplemental data or data patch will be delivered in the same naming convention with a suffix to indicate the specific patch or supplement. For each street segment, 288 records segmented by day type (4), hour (24) and motivation (3) will be provided.

Coverage: The data item will cover the Continental United States plus Hawaii and Puerto Rico except Alaska

Description: Volume and speed represent averages for the specified time period are provided on every directional street segment nationwide with a speed limit of 25 MPH or greater and all pedestrian permitted segments.

The confidence value should always be between 0 and 1.

The segment pedestrian volume should always be populated with one of the following:

  • A positive value represents the pedestrian volume on the roadway segment during the day type, hour and motivation.

  • A value of 0 represents no pedestrian traffic during the day type, hour, motivation.

  • A value of -1 represents that no pedestrian traffic is allowed on that road segment

Attributes and Description:

Attribute:

Description

Number

SEGMENT

Roadway Segment ID

~77,177,996

DAYTYPE

Aggregated Days in Season (WD,FR,SA,SU)

4

HOUR

Aggregated Hour of the Day Type (H00 - H23)

24

MOTIVATION

Trip Motivation (Commute, Education, Other)

3

SPD

Average Hourly Speed on the Roadway Segment for the declared Day Type and Hour

1

VEHVOL

Average Hourly Volume on the Roadway Segment for the declared Day Type, Hour and Motivation combination (Formerly Labeled VOL)

1

OCC

Average Vehicle Occupancy for the declared Day Type, Hour and Motivation combination

1

CONF

Score of the confidence in the Volume given local ground-truth data

1

PEDVOL

Average Hourly Ped Volume on the facility for the declared Day Type, Hour and Motivation combination. Data will include zero values for time periods where there is no pedestrian traffic. If the facility does not permit pedestrians a -1 value will be used.

1

Home Locations

Format: CSV

Structure: Delivered as a set of 440 CSV files segmented by region (22), day type (4) and day part (5). A header row is not included. Any supplemental data or data patch will be delivered in the same naming convention with a suffix to indicate the specific patch or supplement.

The sum of home percentages PCTHOMES for each super link, day type (4), day part (5) combination will be 1 where mode is vehicle and vehicle travel is permitted.

The sum of home percentages PCTHOMES for each super link, day type (4), day part (5) combination will be 1 where mode is pedestrian and pedestrian travel is permitted.

Coverage:                  The data item will cover the Continental United States plus Hawaii and Puerto Rico except Alaska

Description: The super link segment Audience Home Locations by Block Group by day type (4) and day part (5). A super link is defined as a set of road segments with similar audience home locations.    

Attributes and Description:

Attributes:

Description

Number

SUPERLINK

Super Link Segment ID

~3,000,000

BLOCKGROUP

2010 Census Block Group ID

Varies

DAYTYPE

Aggregated Days in Season (WD,FR,SA,SU)

4

DAYPART

Aggregated Hours of the Day Type
DP1: Early AM (Midnight to 6am)
DP2: AM Drive (6am to 10am)
DP3: Midday (10am to 3pm)
DP4: PM Drive (3pm to 7pm)
DP5: Evening (7pm to Midnight)

5

MODE

Mode of Travel: Vehicular or Pedestrian (Formerly Labeled Assignment)

2

PCTHOMES

Percent of Home Locations within the Block Group

1

Basic National Network

Summary: Routable geographic nationwide street network.  Nationwide is defined as the Continental United States plus Hawaii and Puerto Rico.  This dataset does not include Alaska.  This delivery will be comprised of the representative Q1 roadway network of the current year.  (example: provided on June 30, 2020 will be a network representing Q1 of 2020.)

Format: GDB

Attributes and Description:

Attributes:

Description

Number

SEGMENT

HERE LINK_ID with DIRECTION and Region Appended (NNNNNNN_DD_RR)

~77,177,996

SEGMENT_R

Reverse Segment Identifier (NNNNNNN_DD_RR, -1 if the reverse direction does not exist)

1

SUPERLINK

Super Link ID

1

GEOM

Polyline Geometry

1

A

Unique ID at the beginning node of a street segment (Referenced in Path-Trip dataset)

1

B

Unique ID at the end node of a street segment (Referenced in Path-Trip dataset)

1

FUNC_CLASS

Road Functional Class (1-5)
  1: a road with high volume, maximum speed traffic between and through major metropolitan areas.
  2: a road with high volume, high speed traffic between and through cities.
  3: a road with high volume traffic which interconnect Functional Class = 2 roads.
  4: a road with high volume traffic at moderate speeds between neighborhoods.
  5: a road below the level of any other functional class, access roads, and residential streets.

1

ATYPE

Area Type classifies the links within a block group based on the demographics of the block group. (0-5)

0: Regional Core

1: Central Business District

2: Urban Business

3: Urban

4: Suburban

5: Rural

1

AR_AUTO

Identifies if Automobiles are allowed on a segment (0,1)

1

AR_BUS

Identifies if Busses are allowed on a segment (0,1)

1

AR_CARPOOL

Identifies if Carpools are allowed on a segment (0,1)

1

AR_PEDEST

Identifies if Pedestrians are allowed on a segment (0,1)

1

AR_TAXIS

Identifies if Taxis are allowed on a segment (0,1)

1

AR_TRAFF

Identifies if Through Traffic is allowed on a segment (0,1)

1

AR_TRUCKS

Identifies if Trucks are allowed on a segment (0,1)

1

LOW_MBLTY

Low Mobility Segment (1-3)

1: Driving Condition is Low Mobility

2: Driving Condition is Not Low Mobility

3: Driving Condition is Unknown Mobility

1

ST_NAME

Street Name

1

DIRECTION

Direction of Travel (N,NE,E,SE,S,SW,W,NW)

1

REGION

Region Number (1-22 and 50 which is used for inter-regional paths only)

1

LANES

Number of Lanes in the Travel Direction)

1

COUNT

Published Average Annual Daily Traffic in the Travel Direction as available

1

CNT_SOURCE

Source of traffic count as available in Bentley dataset

1

CNT_YEAR

Year that COUNT was collected by the CNT_SOURCE as available in Bentley dataset

1

Turns

Summary: Network Movements that are prohibited (i.e. prohibited left-turns).  This dataset is associated with the companion Network dataset.

Format: CSV

Attributes and Description: 

Attributes:

Description

Number

LINK_ID

From HERE LINK_ID

~600,000

TO_LINKID

To HERE LINK_ID

1

…

To HERE LINK_ID

1

Block Group ID Correspondence

Summary: Correspondence between the 2010 Census Block Group ID and the Transportation Analysis Zone ID

Format:          CSV

Attributes and Description:

Attributes:

Description

Number

BLOCKGROUP

2010 Census Block Group ID used for Home Location product

~220,000

TAZID

Transportation Analysis Zone ID used for Path-Trip product

1