North Central Texas Council of Governments

Kissimmee, FLApril 26, 2019

Creating Travel-Time Contour maps using NPMRDS

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NPMRDS

• NPMRDS stands for National Performance ManagementResearch Data Set

• It refers to a Vehicle probe-based travel time data set acquired by the Federal Highway Administration (FHWA)

• The source of data is INRIX traffic, since January 2017

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Vehicular Data Available

• Travel times, in seconds • At 5 minutes intervals• Every single day of each month• By vehicle type: passenger cars, freight

trucks, and all• Associated to geographic segments referred

as TMCs (Traffic Message Channels)• Includes all freeways and main roads• Available since July 2013

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Coverage NCTCOG

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TMCs:8,987

Length, milesTotal:5,565 Average 0.2

Records/month:28 millions

Coverage by Road Type

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Tools used

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Data storage andmanagement

GIS and network analysis

Roadway Network

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Conflate TMCs to Travel Model Network

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Transfer speeds to Travel Model

1. Use NPMRDS data for all segments when it is available

2. Use estimated speeds from travel model

3. Use speed limits otherwise

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Creating Contours

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Travel Time Contours (Bands)

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15 minutes30 minutes

60 minutes45 minutes

75 minutes

90 minutes

120 minutes

Location of Intermodal Center

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Facility Location

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Facility Location

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Facility Location

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Less than One Hour Travel Time from Arlington Entertainment District

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Demographics

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• Population• Households• Employment• Income

Accessibility

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Dallas and Fort Worth CBDs

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Population Accessible within Time Contours

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Accessibility of Population

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DFW and Love Field airports

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Accessibility to Airports, 8 AM

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Questions?

Francisco J. Torres, P.E.Data Applications ManagerNorth Central Texas Council of GovernmentsPhone: (817) 608-2356ftorres@nctcog.org

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