Regional Transportation Data Clearinghouse Update
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Transcript of Regional Transportation Data Clearinghouse Update
Regional Transportation Data Clearinghouse Update
MWCOG Technical Committee5 November 2004
Bob Griffiths, Martha Kile, Charlene HowardDepartment of Transportation Planning
Overview• Background
• Clearinghouse Project
• What’s New in 2004
• Views
• Future Steps
• Demonstration
Background
• Regional transportation database– Datasets available for 1986 - 2003– Updates and additions as data become available
• Data in Clearinghouse– COG transportation network data– Traffic volume data received from DC, MD, VA– COG survey data– Cooperative Forecast (Round 6.3)– Alternative transportation data (transit, bike, etc.)
Clearinghouse Project• Arcview 3.2 project
• Six different ‘views’ of data
• View-specific menu choices
• Buttons available throughout project
• Spatial data- ESRI Arcview shapefile format
• Other files- DBF tables, Avenue scripts, custom legends
What’s new in 2004• New Views
– Census Data View– Detailed Traffic Volume View
• New data in other views– Datasets– Menu choices
Clearinghouse View• New
Clearinghouse Network– 2003 network
• Additional years for traffic volumes– 2001– 2002– 2003
• Truck Restrictions dataset
Regional Trends View
CarrollFrederick
Jefferson
Howard
MontgomeryLoudoun
Clarke
Anne Arundel
Prince George's
Fauquier
DC
Prince William
ArlingtonAlexandria
Calvert
CharlesStafford
St. Mary'sKing George.
Spotsylvania
Fredericksburg
Fairfax
CarrollFrederick
Jefferson
Howard
MontgomeryLoudoun
Clarke
Anne Arundel
Prince George's
Fauquier
DC
Prince William
ArlingtonAlexandria
Calvert
CharlesStafford
St. Mary'sKing George.
Spotsylvania
Fredericksburg
Fairfax
• Round 6.3 Cooperative Forecast data – Population– Households– Employment
• Compare data – 1990-2000– 2000-2010– 2010-2030
Carroll
Frederick
Jefferson
Howard
MontgomeryLoudoun
Clarke
Anne Arundel
Prince George's
Fauquier
DC
Prince William
Arlington
Alexandria
Calvert
CharlesStafford
St. Mary's
King George.
Spotsylvania
Fredericksburg
Fairfax
Survey View• 2003 Arterial
Travel Time Study data
• 2002 Metro Core Cordon Count data
Transit View• Bicycle
Facilities data• 2003 AM Peak
and Off Peak Bus Routes
• WMATA Spring 2002 Rail Passenger Study– Mode of Access– Mode of Egress
Prince George's
DCArlington
Alexandria
Fairfax
Census View• Entirely new view• Census Tracts
and Block groups• Menu options
– Mode of Transportation to Work
– Travel Time to Work
Carroll
Frederick
Jefferson
Howard
MontgomeryLoudoun
Clarke
Anne Arundel
Prince George's
Fauquier
DC
Prince William
Arlington
Alexandria
Calvert
CharlesStafford
St. Mary's
King George.
Spotsylvania
Fredericksburg
Fairfax
Detailed Traffic View• Entirely new view• Network volumes for
MD and VA for May 2001 (trial period)
• Menu choice: zoom to links with detailed traffic counts
• View Tool: get counts– Choices
• Specific Date• Average of all days• Average of weekdays
– One table for each direction
• Volume information• Link information
Carroll
Frederick
Jefferson
Howard
MontgomeryLoudoun
Clarke
Anne Arundel
Prince George's
Fauquier
DC
Prince William
Arlington
Alexandria
Calvert
CharlesStafford
St. Mary's
King George.
Spotsylvania
Fredericksburg
Fairfax
Detailed Traffic ViewExample table
ROUTE_ID DIRECTION NAME BETWEEN AND HOUR ADT COUNTDAYS
I95 NB
Capital Beltway - outer loop
ramp from Ritchie Marlboro Rd
ramp to MD 214 - Central Ave 0 1144 9
I95 NB
Capital Beltway - outer loop
ramp from Ritchie Marlboro Rd
ramp to MD 214 - Central Ave 1 848 9
I95 NB
Capital Beltway - outer loop
ramp from Ritchie Marlboro Rd
ramp to MD 214 - Central Ave 2 722 9
I95 NB
Capital Beltway - outer loop
ramp from Ritchie Marlboro Rd
ramp to MD 214 - Central Ave 3 736 9
Future Steps• December Technical Committee Meeting
– Distribution of Clearinghouse Project on CD
• Current Plans– Continued data acquisition
• Additional years • Additional sources• Detailed traffic view: additional time periods such as AM
and PM peak, off-peak– Clearinghouse availability
• Alternatives to Arcview GIS project?
Demonstration