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

Carroll

Frederick

Jefferson

Howard

Montgomery

LoudounClarke

Anne Arundel

Prince George's

Fauquier

DC

Prince William

Arlington

Alexandria

Calvert

CharlesStafford

St. Mary's

King George.

Spotsylvania

Fredericksburg

Fairfax

Carroll

Frederick

Jefferson

Howard

Montgomery

LoudounClarke

Anne Arundel

Prince George's

Fauquier

DC

Prince William

Arlington

Alexandria

Calvert

CharlesStafford

St. Mary's

King 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

Montgomery

LoudounClarke

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

DC

Arlington

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

Montgomery

LoudounClarke

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

Montgomery

LoudounClarke

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