Update for VTrans2025 Multimodal Advisory Committee
description
Transcript of Update for VTrans2025 Multimodal Advisory Committee
1Center for Risk Management of Engineering Systems
University of Virginia
Update for VTrans2025Multimodal Advisory Committee
August 8, 2006
2Center for Risk Management of Engineering Systems
University of Virginia
3Center for Risk Management of Engineering Systems
University of Virginia
Overview
• Statewide Corridor Analysis
– Corridor comparison at the statewide level
• Demographic Comparisons
– Population Density
– Jobs / Employed Residents (JER) Ratio
– Median Commute Times
– Accessibility
– Minimum required commute (MRC)
4Center for Risk Management of Engineering Systems
University of Virginia
MaturityPotential
Statewide Corridor Analysis
• Given a need for cost-effective, multimodal solutions, the objectives are to
– Characterize current multimodal maturity
– Characterize potential multimodal success
– Identify corridors (statewide, regional, and local) of multimodal statewide significance
– Prioritize and allocate multimodal investments among corridors
5Center for Risk Management of Engineering Systems
University of Virginia
Statewide Corridor Analysis
• Six ‘pronged’ characterization
– Multimodal vision and planning
– Budgeting and programming
– Demographic, geographic, and land-use characteristics
– Existing infrastructure
– Technology/Knowledge
6Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
• Lends itself to studies of accessibility, defined as ease of access from origins to destinations– Population density– Jobs / Employed Residents (JER) Ratio– Modeshare – Median Commute Times– Accessibility
• Source data– 2000 Census– 2000 CTPP– 2001 NHTS– Land-use?
7Center for Risk Management of Engineering Systems
University of Virginia
Demographic AnalysisPopulation of VA Transportation Corridors
936
1460
2186
1645
326115
2904
2436
1294
1732
1130
0
500
1000
1500
2000
2500
3000
3500
M01(I81)
M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06(I77)
M07(I95)
M08(I64)
M09(US17)
M10(I66)
M11(US13)
8Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Number of Tracts in VA Transportation Corridors
191
363
419393
71
23
603586
305 315277
0
100
200
300
400
500
600
700
M01(I81)
M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06(I77)
M07(I95)
M08(I64)
M09(US17)
M10(I66)
M11(US13)
9Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Land Area of VA Transportation Corridors
7181
8189
5893
9946
13941976
6178
8072
4387
1658
2662
0
2000
4000
6000
8000
10000
12000
M01
(I81)
M02
(US460)
M03
(US29)
M04
(US58)
M05
(US220)
M06
(I77)
M07
(I95)
M08
(I64)
M09
(US17)
M10
(I66)
M11
(US13)
10Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
• Recommend to include Loudoun County in the M10 (I66) corridor– Population 255K, 6th greatest in
Virginia – Fastest growing county in
Virginia• 51% increase since 2000• Next highest is Alleghany at
29%• Median increase is less than
3%
COUNTY July 1,2005 April 1,2000 Growth
Loudoun County 255,518 169,599 151%Powhatan County 26,598 22,377 119%King William County 14,732 13,146 112%Amelia County 12,273 11,400 108%Northumberland County 12,874 12,259 105%Rappahannock County 7,271 6,983 104%Cumberland County 9,378 9,017 104%Westmoreland County 17,227 16,718 103%Charles City County 7,119 6,926 103%Buckingham County 16,058 15,623 103%Surry County 7,013 6,829 103%King and Queen County 6,796 6,630 103%Craig County 5,154 5,091 101%Lunenburg County 13,194 13,146 100%Lancaster County 11,593 11,567 100%Mathews County 9,194 9,207 100%Charlotte County 12,404 12,472 99%Highland County 2,475 2,536 98%Source: U.S. Census Bureau, Population Estimates Program
Population and growth rate for counties not defined within VA statewide transportation corridors
11Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Modeshare in M07 (I95) Corridor
74.3%
13.0%
2.3%
3.6%
0.4%
0.2%
2.0%
3.3%
0.9%
0.1%
1.0%
10.0%
100.0%
DroveAlone
Carpool Bus Metro CommuterRail
Bike Walk Work atHome
Other
12Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Modal Split in VA Corridors
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
Percent Modeshare
Drove Alone Carpool Bus Metro Commuter Rail Bike Walk Work at Home Other
13Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Modal Split (Excluding 'Drive Alone' and 'Carpool') in VA Corridors
0%
1%
2%
3%
4%
5%
6%
7%
M01 (I81) M02(US460)
M03 (US29) M04 (US58) M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09 (US17) M10 (I66) M11 (US13)
Percent Modeshare
Bus Metro Commuter Rail Bike Walk Work at Home Other
14Center for Risk Management of Engineering Systems
University of Virginia
A1
O1
O3
O4
O2
Demographic Analysis
Accessibility
15Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
16Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
17Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
18Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
19Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
20Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
21Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Commuters Who Drive Alone by Census TractAmong VA Transportation Corridors
Virginia Beach(51810046008)
Fairfax(51059491400)
Spotsylvania(51177020200)
Norfolk(51710000900)
Fairfax(51059491400)
Wythe(51197990400)
Roanoke(51161031200)
Virginia Beach(51810046008)
Fairfax(51059491400)
Campbell(51031020400)
Frederick(51069050800)
Accomack(51001990600)
Arlington(51013100200)
Norfolk(51710005602)
Newport News(51700032001)
Dinwiddie(51053840200)
Giles(51071990300)Henry
(51089011300)Henry(51089011200)
Albemarle(51003011100)
Roanoke(51770002100)
Rockingham(51165011400)
Southampton(51175200300)
Fairfax(51059422200)
P ortsmouth(51740212200)
Southampton(51175200300)
Fairfax(51059422200)
Giles(51071990100)
Roanoke(51770001100)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
Roanoke(51770001100)
0
1000
2000
3000
4000
5000
6000
7000
8000
9000
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
22Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Percent Commuters Who Drive Alone by Census TractAmong VA Transportation Corridors
Roanoke(51770002200)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
Roanoke(51770002200)
P ulaski(51155210100)
Fairfax(51059422200)
Southampton(51175200300)
P ortsmouth(51740212200)
Fairfax(51059422200)
Southampton(51175200300)
Rockingham(51165011600)
Norfolk(51710006901)
Danville(51590001000)
Norfolk(51710005100)
Henry(51089010700) Wythe
(51197990200)Chesterfield(51041100300)
Henrico(51087200125)
Norfolk(51710000600)
P rince William(51153900700)
Virginia Beach(51810046400)
Montgomery(51121020100)
Norfolk(51710004800)
Lynchburg(51680000203) Norfolk
(51710004800)
Roanoke(51770001100)
Carroll(51035990200)
Stafford(51179010201)
Norfolk(51710004800)
Stafford(51179010201)
Arlington(51013103401)
Norfolk(51710004800)
0
0.2
0.4
0.6
0.8
1
1.2
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
23Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Commuters Who Carpool by Census TractAmong VA Transportation Corridors
Warren(51187020600)
Norfolk(51710000900)
P rince William(51153900200)
Norfolk(51710000900)
Henry(51089011000)
Wythe(51197990400)
P rince William(51153900200)
Norfolk(51710000900)
Norfolk(51710000900)
P rince William(51153900200)
Norfolk(51710000900)
Shenandoah(51171040200) Norfolk
(51710006604)
Lynchburg(51680001300)
Chesapeake(51550021009)
Franklin(51067020200)
Giles(51071990400)
Arlington(51013101600)
Henrico(51087200302)
Suffolk(51800065500)
Fairfax(51059461900)
P ortsmouth(51740212400)Harrisonburg
(51660000203)Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
Roanoke(51770001100)
Bland(51021990100)
Fairfax(51059422200)
Albemarle(51003010903)
P ortsmouth(51740212200)
Fairfax(51059422200)
Southampton(51175200300)
0
500
1000
1500
2000
2500
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
24Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Percent Commuters Who Carpool by Census TractAmong VA Transportation Corridors
Roanoke(51770001000)
P etersburg(51730810400)
Amherst(51009010502)
Norfolk(51710003502)
Martinsville(51690000200)
Carroll(51035990500)
P etersburg(51730810400)
P etersburg(51730810400) Norfolk
(51710003502)
Alexandria(51510201203)
Norfolk(51710003502)
Augusta(51015070800)
Montgomery(51121021300)
Fairfax(51059451300)
Danville(51590001400) Roanoke
(51161031100)
Giles(51071990400) Arlington
(51013102100)Isle of Wight(51093280300)
Norfolk(51710000600)
Fairfax(51059450700)
Northampton(51131990200)
Harrisonburg(51660000203) Southampton
(51175200300)Fairfax(51059422200)
Southampton(51175200300)
Roanoke(51770001600)
P ulaski(51155210600)
Fairfax(51059422200)
Albemarle(51003010903)
P ortsmouth(51740212200)
Fairfax(51059422200)
Southampton(51175200300)
0
0.1
0.2
0.3
0.4
0.5
0.6
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
25Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Commuters Who Ride a Bus by Census TractAmong VA Transportation Corridors
Montgomery(51121020400)
P rince George(51149850200)
Alexandria(51510201203)
Norfolk(51710002900) Roanoke
(51770000900)
Carroll(51035990400)
Alexandria(51510201203)
Richmond(51760060400)
Newport News(51700030300)
Alexandria(51510201203)
Norfolk(51710002900)
Staunton(51790000100)
Chesapeake(51550020501)
Danville(51590001100)
Chesapeake(51550020502)
Roanoke(51161030900)
Bland(51021990100)
Arlington(51013101100) Fluvanna
(51065020200)York(51199050500)
P rince William(51153900600)
Virginia Beach(51810043001)
P ulaski(51155210500)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
Roanoke(51161030201)
Bland(51021990100)
Arlington(51013101900)
Albemarle(51003011100)
P ortsmouth(51740212200)
Fairfax(51059422200)
Southampton(51175200300)
1
10
100
1000
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
26Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Percent of Commuters Who Ride a Bus by Census TractAmong VA Transportation Corridors
Roanoke(51770001100)
Norfolk(51710004800)
Albemarle(51003010902)
Norfolk(51710004800)
Roanoke(51770001100)
Bland(51021990200)
Richmond(51760030100)
Richmond(51760030100)
Norfolk(51710004800)
Fairfax(51059451400)
Norfolk(51710004800)
Rockingham(51165011500)
Buchanan(51027990700)
Fairfax(51059422000)
Virginia Beach(51810046219)
Henry(51089011300)
Bland(51021990100)
Chesterfield(51041100600)
Henrico(51087200125)
Newport News(51700032117)
P rince William(51153900903)
Chesapeake(51550020904)
P ulaski(51155210500)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
Roanoke(51161030201)
Bland(51021990100)
Arlington(51013101900)
Albemarle(51003011100)
P ortsmouth(51740212200)
Fairfax(51059422200)
Southampton(51175200300)
0.0001
0.001
0.01
0.1
1
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
27Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Commuters Who Ride METRO by Census TractAmong VA Transportation Corridors
Chesapeake(51550020805)
Arlington(51013101400)
Chesapeake(51550020805)
Chesapeake(51550020805)
Arlington(51013101400)
Franklin(51067020500)
Chesapeake(51550020805)
Arlington(51013101400)
Chesapeake(51550020805)Warren
(51187020100)
Southampton(51175200300)
Alexandria(51510200201)
P ortsmouth(51740212200)
Albemarle(51003010100)
Brunswick(51025990100)
Bland(51021990100)
Roanoke(51161030201)
Southampton(51175200300)
Fairfax(51059491000)
Southampton(51175200300)
P ulaski(51155210500)
Fairfax(51059422200)
Fairfax(51059422200)
1
10
100
1000
10000
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
28Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Percent of Commuters Who Ride METRO by Census TractAmong VA Transportation Corridors
Virginia Beach(51810045807)
Arlington(51013103500)
Suffolk(51800065300)
Richmond(51760020100)
Arlington(51013103500)
Franklin(51067020500)
Virginia Beach(51810045807)
Arlington(51013103500)
Suffolk(51800065300)Clarke
(51043010300)
Southampton(51175200300)
Arlington(51013102200)
P ortsmouth(51740212200)
Albemarle(51003010100)
Brunswick(51025990100)
Bland(51021990100)
Roanoke(51161030201)
Southampton(51175200300)
Fairfax(51059431900)
Southampton(51175200300)
P ulaski(51155210500)
Fairfax(51059422200)
Fairfax(51059422200)
0.0001
0.001
0.01
0.1
1
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
29Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Commuters Who Take Commuter Rail by Census TractAmong VA Transportation Corridors
Suffolk(51800075400)
Fairfax(51059430100)
Spotsylvania(51177020200)
Henrico(51087200108)
Fairfax(51059430100)
Bland(51021990100)
Roanoke(51161031100)
Suffolk(51800075400)
Fairfax(51059430100)
Bedford(51019030603)
Roanoke(51161031100)
Southampton(51175200300)
Fairfax(51059422200)
P ortsmouth(51740212200)
Albemarle(51003010100)
Arlington(51013100100)
Roanoke(51161030201)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
P ulaski(51155210500)
0
20
40
60
80
100
120
140
160
180
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
30Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Percent of Commuters Who Take Commuter Rail by Census Tract Among VA Transportation Corridors
Roanoke(51161031100)
Bedford(51019030603)
P rince William(51153900100)
Suffolk(51800075400)
Roanoke(51161031100)
Stafford(51179010403)
Henrico(51087200108)
Stafford(51179010403)
P rince William(51153900100)
Suffolk(51800075400)
P ulaski(51155210500)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
Roanoke(51161030201)
Bland(51021990100)
Arlington(51013100100)
Albemarle(51003010100)
P ortsmouth(51740212200)
Fairfax(51059422200) Southampton
(51175200300)0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
31Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Commuters Who Bike to Work by Census TractAmong VA Transportation Corridors
Harrisonburg(51660000400)
Montgomery(51121020600)
Charlottesville(51540000502)
Virginia Beach(51810044200)
Henry(51089010600)
P ulaski(51155210100)
Richmond(51760040400)
Richmond(51760040400)
Newport News(51700032115)
Arlington(51013101500)
Virginia Beach(51810044200)
P ulaski(51155210500)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
Roanoke(51161030201)
Bland(51021990100)
Arlington(51013100800)
Albemarle(51003010100)
P ortsmouth(51740212200)
Fairfax(51059422200)
Southampton(51175200300)
0
20
40
60
80
100
120
140
160
180
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
32Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Percent of Commuters Who Bike to Work by Census TractAmong VA Transportation Corridors
Staunton(51790000100)
Norfolk(51710003900)
Albemarle(51003010903)
Norfolk(51710003900)
Roanoke(51770001100)
P ulaski(51155210100)
Richmond(51760041200)
Richmond(51760041200)
Norfolk(51710003900)
Alexandria(51510202002)
Norfolk(51710003900)
P ulaski(51155210500)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
Roanoke(51161030201)
Bland(51021990100)
Arlington(51013100800)
Albemarle(51003010100)
P ortsmouth(51740212200)
Fairfax(51059422200)
Southampton(51175200300)
0
0.02
0.04
0.06
0.08
0.1
0.12
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
33Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Commuters Who Walk to Work by Census TractAmong VA Transportation Corridors
Norfolk(51710000900)
Arlington(51013103401)
Norfolk(51710000900)
Norfolk(51710000900)
P rince George(51149850200)
P ulaski(51155210300)
Salem(51775010200)
Norfolk(51710000900)
Charlottesville(51540000700)
Norfolk(51710000900)
Montgomery(51121020100)
Virginia Beach(51810044600)
Manassas P ark(51685920100)
Norfolk(51710003900)Albemarle
(51003011000)Arlington(51013100900)Carroll
(51035990300)
Roanoke(51770001100)
Virginia Beach(51810046008)P rince William
(51153900100)Roanoke(51770001100)
Shenandoah(51171040200)
Southampton(51175200300)Fairfax
(51059422200)P ortsmouth(51740212200)
Albemarle(51003010300)
Arlington(51013100800)
Bland(51021990200)
Henry(51089010900)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
Bristol(51520020400)
1
10
100
1000
10000
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
34Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Percent of Commuters Who Walk to Work by Census TractAmong VA Transportation Corridors
Montgomery(51121020100)
P ortsmouth(51740210800)
Lynchburg(51680000203)
P ortsmouth(51740210800)
Roanoke(51770001100)
P ulaski(51155210300)
Stafford(51179010201)
P ortsmouth(51740210800)
Stafford(51179010201)
Arlington(51013103401)
P ortsmouth(51740210800)
Augusta(51015071100)
Chesapeake(51550020400)
P rince William(51153901005)
Norfolk(51710003600)
Franklin(51067020300) Giles
(51071990100)
Arlington(51013100900)
Albemarle(51003010700)
Norfolk(51710000600) Fairfax
(51059416000)
Chesapeake(51550020901)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
Henry(51089010900)
Wythe(51197990400)
Arlington(51013100800)
Albemarle(51003010300)
P ortsmouth(51740212200)
Fairfax(51059422200)
Southampton(51175200300)
0.001
0.01
0.1
1
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
35Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Employees Who Work at Home by Census TractAmong VA Transportation Corridors
Norfolk(51710000900)
Fairfax(51059480500)
Norfolk(51710000900)
Norfolk(51710000900)
Fairfax(51059480500)Wythe
(51197990300)
Franklin(51067020100)
Norfolk(51710000900)
Fairfax(51059480500)
Norfolk(51710000900)
Rockingham(51165011200)
Norfolk(51710003800)
P rince William(51153901404)Norfolk
(51710003800)Albemarle(51003010700)
Arlington(51013100600)
Carroll(51035990100)
Roanoke(51161030100)
Henry(51089010900)
Falls Church(51610500100)
Norfolk(51710004400)
Montgomery(51121020300)
Southampton(51175200300)
Fairfax(51059422200)
P ortsmouth(51740212200)
Albemarle(51003010902)
Arlington(51013103300)
P ulaski(51155210500)
Henry(51089011000)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
P ulaski(51155210500)
0
500
1000
1500
2000
2500
3000
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)
36Center for Risk Management of Engineering Systems
University of Virginia
Demographic Analysis
Percent of Employees Who Work at Home by Census TractAmong VA Transportation Corridors
Montgomery(51121020100)
Lynchburg(51680000500)
Lynchburg(51680000500)
Norfolk(51710000900)
Franklin(51067020100)
Giles(51071990100)
Fairfax(51059480100)
Norfolk(51710000900)
Norfolk(51710000900)
Fairfax(51059480100)
Norfolk(51710000900)
Winchester(51840000100)
Wise(51195990800)
Fairfax(51059490900) Virginia Beach
(51810045810)
Martinsville(51690000100)
Giles(51071990200)
Fairfax(51059421600)
Alleghany(51005080201)
P ortsmouth(51740210700)
Fauquier(51061990401)
Norfolk(51710003700)
P ulaski(51155210500)
Southampton(51175200300)
Fairfax(51059422200)
Southampton(51175200300)
Henry(51089011000)
P ulaski(51155210500)
Arlington(51013103300)
Albemarle(51003010902)
P ortsmouth(51740212200)
Fairfax(51059422200) Southampton
(51175200300)0
0.05
0.1
0.15
0.2
0.25
0.3
M01 (I81) M02(US460)
M03(US29)
M04(US58)
M05(US220)
M06 (I77) M07 (I95) M08 (I64) M09(US17)
M10 (I66) M11(US13)