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Local–express lanes

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(Redirected from C/D roads)
"Collector–distributor lane" redirects here. For a low-to-moderate-capacity road that connects to local streets, see Collector road.
System with four roadways/carriageways, where access ways primarily connect with the outer roadways. Through traffic on the inner carriageways can flow without interruption.

The local–express lane system is an arrangement of carriageways within a major highway where long distance traffic can use inner express lanes with fewer interchanges compared to local traffic which use outer local lanes that have access to all interchanges. This can also be called a collector/distributor lane system within a single interchange. One of the longest examples is Highway 401 in Toronto, where highway ramps between express and local lanes cross over one another; these are commonly known as braided ramps.[1][2][3][4][5][6]

Some places may have only three carriageways on the highway instead of four, utilizing one directional express lanes. They may be permanent, or they can be reversible express lanes such as in Seattle where they alternate direction.

While a local–express system and a collector/distributor system are used interchangeably, some transportation departments make a distinction between the two. In a local–express system, the inner lanes are called express lanes whereas the outer lanes are called local lanes. In a collector/distributor system, the inner lanes are called mainlines while the outer lanes are called collector/distributor lanes. Generally speaking, a local–express system will have the extra outer lanes present for a long duration of the highway, as opposed to a collector/distributor system where the extra outer lanes are only present at an interchange.

Examples

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The following examples include both local–express and collector/distributor lane systems.

Canada

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Province Highway City/Region Location Length Notes
Alberta Highway 2 Edmonton 178  St – 170 St 1.2 km (0.75 mi) Whitemud Drive
Alberta Highway 2
Highway 14		 Edmonton 111 St - 99  St 2.1 km (1.3 mi) Whitemud Drive; Hwy 2 111 St from to Gateway Boulevard; Hwy 14 from Gateway Boulevard to 99 St
Alberta Highway 63 Fort McMurray MacDonald Drive – Confederation Way 5 km (3.1 mi) northbound only
Alberta Highway 201 Calgary Scenic Acres Link – Nose Hill Drive 2.5 km (1.6 mi) Stoney Trail
Alberta Highway 1A Calgary Northland Drive – Shaganappi Trail (NB), Shaganappi Trail – Brisebois Dr (SB) 2 km (1.2 mi) Crowchild Trail
Alberta Highway 1A Calgary Dalham Crescent (LRT) – 53 St 1 km (0.62 mi) Crowchild Trail
British Columbia Highway 1 Coquitlam and Surrey Cape Horn Interchange – 152nd Street 5.4 km (3.4 mi) Connects to the Port Mann Bridge. Express carriageways contain an HOV lane each.
British Columbia Highway 99 Delta Highway 99 between Hwy 17 – Hwy 17A 2.70 km (1.68 mi) Westbound traffic only, ends near the start of reversible lane gates for Massey Tunnel. Local lanes include an HOV lane. Access to reversible lane for Westbound traffic only from express lanes.
Nova Scotia Hwy 118 Dartmouth Exit 12 2.2 km (1.4 mi) southbound only
Ontario Highway 400 York Region Highway 7 interchange – south of Langstaff Road[7] 3.0 km (1.9 mi) signed as exits to Highway 7 and Langstaff Road rather than collector–express
Ontario Highway 401 Toronto and Durham Region east of Kipling Avenue (Highway 409 interchange) – Brock Road, Pickering[8] 44 km (27 mi) Primary system first completed from Islington to Markham Road in 1972, Brock Road in 1997.
Longest local-express system in Canada.
Ontario Highway 401 Peel Region Winston Churchill Boulevard – Highway 427[9] 9.6 km (6.0 mi) originally ended at Highway 403 in 1980s, extended to just east of Kennedy Road in early 1990s, extended further westward to Hurontario Street in late-2000s, construction presently underway to complete it just west of Mississauga Road by early 2020s
Ontario Highway 401 Halton Region James Snow Parkway - Highway 407[10] 4.6 km

(2.9 mi)

Built as a separate stretch due to the 407 overpass not being wide enough for a continuous collector-express system underneath. Completed early 2020s.
Ontario Highway 403 Peel Region Highway 401 / Highway 410 interchange – Cawthra Road 3.4 km (2.1 mi) Completed 1994
Ontario Highway 404 Toronto Highway 401 – just north of Sheppard Avenue East 1.8 km (1.1 mi) 401 eastbound to 404 northbound ramp express lane (no access to Sheppard Avenue offramp) completed 2001, southbound collector lanes completed 2005
Ontario Highway 410 Peel Region Highway 401 / Highway 403 interchange – Courtneypark Drive 1.8 km (1.1 mi) northbound only, access to the express from the 403 only[11]
Ontario Highway 410 Peel Region Highway 407 – Courtneypark Drive 2.0 km (1.3 mi) southbound only; signed as exits to Derry Road and Courtneypark Drive rather than collector–express.[12] Opened June 2022
Ontario Highway 427 Toronto Queen Elizabeth Way / Gardiner Expressway – Highway 401 6.8 km (4.2 mi)
Ontario Conestoga Parkway Kitchener Lancaster Street – Krug Street 2.3 km (1.4 mi)
Ontario Gardiner Expressway (formerly QEW) Toronto Wickman Road (west of Kipling Avenue) – Royal York Road 2.7 km (1.7 mi)
Quebec A-13 Laval Throughout the city of Laval 8.6 km (5.3 mi)
Quebec A-40 Repentigny Larochelle Boulevard – Industrial Boulevard 4.3 km (2.7 mi) Exit 98 and Exit 100, with a single transfer in between
Quebec A-40 Repentigny R-341 – R-343 4.2 km (2.6 mi) eastbound only
Quebec A-40 West Island Ste Marie Road- A-520 18.4 km (11.4 mi)
Quebec A-440 Laval A-13 - East of Industrial Boulevard 8.1 km (5.0 mi)

United States

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State Highway City/Region Location Length Notes
California I-5 (Santa Ana Freeway) Santa Ana Orange Crush Interchange (SR 22 / SR 57) – Main Street 1.1 miles (1.8 km) southbound only
California I-5 (Santa Ana/San Diego Freeway) Irvine Lake Forest Drive – Irvine Center Drive 2.2 miles (3.5 km) El Toro Y (Junction I-405)
California I-5 (San Diego Freeway) Sorrento Valley, San Diego I-805 – SR 56 2.5 miles (4.0 km) signed local–express lane system
California I-10 (Santa Monica Freeway) Los Angeles I-110 / SR 110 – Arlington Avenue 2.4 miles (3.9 km)
California I-805 (Jacob Dekema Freeway) Chula Vista H Street – E Street / Bonita Road 0.9 miles (1.4 km) northbound only
California US 101 (Bayshore Freeway) San Mateo County near San Francisco International Airport 1.7 miles (2.7 km)
California SR 87 (Guadalupe Parkway) I-280 – Julian Street along Downtown San Jose 1.2 miles (1.9 km) northbound
California SR 87 (Guadalupe Parkway) I-280 – Alma Avenue 0.7 miles (1.1 km) southbound
California SR 125 El Cajon Navajo Road – Grossmont College Drive 0.6 miles (0.97 km) collector-distributor system
California SR 180 Fresno SR 41 / SR 168 interchanges 1.1 miles (1.8 km) This interchange is unusual because it also allows traffic to flow directly between SR 41 and SR 168 bypassing SR 180, making it in effect a double braided ramp. www.dot.ca.gov Google Maps
Florida I-295 Jacksonville Between Collins Road and Roosevelt Boulevard/US-17 3.4 miles (5.47 km)
Georgia I-85 Gwinnett County Exit 104 – Exit 109 5.4 miles (8.7 km) collector distributor system
Georgia I-85 / I-285 Fulton County Between Georgia State Route 14 and split of I-85 and I-285. 1.0 mile (1.6 km) Dual express carriageways and CD road for local exits
Illinois I-90 / I-94 (Kennedy Expressway) Chicago Ohio Street – Edens Expressway 7.0 miles (11.3 km) reversible express lane
Illinois I-90 / I-94 (Dan Ryan Expressway) Chicago 71st Street – I-55 5.5 miles (8.9 km) signed local–express lane system; no trucks are allowed in the express lanes
Illinois IL 53 Rolling Meadows I-290 – Kirchhoff Road 2.1 miles (3.4 km) local–express format
Iowa I-29 / I-80 Council Bluffs I-80 Exit 1 to Exit 4 3.12 miles (5.02 km) signed local–express lane system; dual-divided freeway format
Kansas K-10 Lenexa K-10 Exit to Interstate 435 East, Lackman Road & Interstate 35 2.18 miles (3.51 km) Dual-divided freeway format
Maryland I-95 (Express toll lanes) Baltimore County White Marsh – Baltimore 7.6 miles (12.2 km) signed local–express lane system
Maryland I-270 (northbound) Montgomery County Montrose Road – Montgomery Village Avenue 8.3 miles (13.4 km) signed local–express lane system
Maryland I-270 (southbound) Montgomery County Montrose Road – I-370 5.6 miles (9.0 km) signed local–express lane system
Michigan I-96 Detroit Outer Drive – Davison Avenue 5.8 miles (9.3 km) signed local–express lane system
Mississippi I-55 Hernando I-69 / I-269 1.08 miles (1.74 km)
Nebraska US 6 (West Dodge Road/West Dodge Expressway) Omaha 93rd Street – 120th Street 1.5 miles (2.4 km) Elevated West Dodge Freeway bypasses 114th and 120th Street intersections; West Dodge Road is technically a frontage road due to multiple at-grade intersections
New Jersey I-78 I-95 / N.J. Turnpike – Route 24 10.2 miles (16.4 km) signed local–express lane system
New Jersey I-80 I-95 / G.S. Parkway – I-280 / I-287 6.2 miles (10.0 km) signed local–express lane system
New Jersey I-95 / N.J. Turnpike Ridgefield Park between Overpeck Creek and US 46 – George Washington Bridge. 5.1 miles (8.2 km) signed local–express lane system
New Jersey I-287 I-78 – US 202 / US 206 3.0 miles (4.8 km)
New Jersey US 1/9 Route 81 – US 1/9 Truck 5.9 miles (9.5 km) signed local–express lane system
New Jersey Route 3 N.J. Turnpike western spur – Route 495 1.2 miles (1.9 km)
New Jersey G.S. Parkway Middlesex & Monmouth counties Raritan tolls – Asbury Park tolls 21.8 miles (35.1 km) signed local–express lane system
New York I-495 Elmhurst Exit 19 1.4 miles (2.3 km)
New York Cross County Parkway Yonkers-Mount Vernon Cross County Parkway (Exits 4S / 4N - Exit 8) 2.10 miles (3.38 km) signed local–express lane system
New York Westchester Avenue Harrison I-287 (Exits 9S / 9N) 2.8 miles (4.5 km)
Ohio I-270 Columbus SR 161 – McCutcheon Road (just north of I-670) 3.3 miles (5.3 km)
Ohio I-271 Greater Cleveland I-480 (North Randall) – I-90 (Willoughby Hills) 13.9 miles (22.4 km) signed local–express lane system
Ohio I-480 Greater Cleveland I-77 (Independence) – Transportation Boulevard / East 98th Street (Garfield Heights) 0.8 miles (1.3 km) signed local–express lane system
Pennsylvania I-79 Cranberry Township PA 228 2 miles (3.2 km) southbound only
Pennsylvania US 1 (Roosevelt Boulevard) Northeast Philadelphia 11.9 miles (19.2 km) surface roadway with express and local lanes
Texas I-10 (McDermott Freeway) San Antonio Exit 567 – Exit 570 2.0 miles (3.2 km)
Texas I-10 / I-35 (PanAm Expressway) San Antonio Exit 155A (Spur 536) –Exit 154A (Loop 353) 0.7 miles (1.1 km)
Texas I-35 (PanAm Expressway) San Antonio Exit 156 (I-10) – Exit 158 (I-37) 1.8 miles (2.9 km)
Texas I-635 (Express toll lanes) northern Dallas Exit 19 – Exit 27C (I-35E) 9.9 miles (15.9 km)
Virginia VA-267 (Dulles Toll Road) Washington metropolitan area I-495 (Exit 18) 14.0 miles (22.5 km)[13]
Washington D.C./Virginia/Maryland I-495 (Capital Beltway) Washington metropolitan area Telegraph Road (Alexandria, Virginia) – MD 210 (Oxon Hill, Maryland) 6.6 miles (10.6 km) signed local–express lane system
Washington I-5 Seattle Yesler Way – NE Northgate Way 7.3 miles (11.7 km) reversible express lanes
Washington I-5 Seattle Holgate Street – 8th Avenue tunnel 1.7 miles (2.7 km)
Wisconsin I-41 / I-94 Milwaukee College Avenue – I-41 / I-43 2.5 miles (4.0 km) Local lanes provide access to Milwaukee Mitchell International Airport's Airport Spur and other local exits

Other countries

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Country Highway City Location Length Notes
Argentina National Route 9 (North Access freeway) Buenos Aires Vicente López – San Isidro
Australia Warringah Freeway Sydney Miller Street – Bradfield Highway
Australia West Gate Freeway Melbourne (CityLink) – Burnley Tunnel/Domain Tunnel

Williamstown Road - Western Ring Road

Section between Williamstown Road and M80 only partially completed
Australia Tullamarine Freeway Melbourne Mickleham Road - Western Ring Road (southbound direction only)

Calder Freeway - Bell Street

Australia Metropolitan Ring Road Melbourne Hume Freeway - Edgars Road 1 km

(0.6 mi)

Australia Kwinana Freeway Perth State Route 14 (Beeliar Drive) – Berrigan Drive 2.2 km (1.4 mi)
Brazil Rod. Pres Dutra RJ/BR-116 Nova Iguaçu, Rio de Janeiro Saída 178B - Km 165 13.0 km (8.1 mi)
Brazil Rod. Pres Dutra SP/BR-116 São Paulo, Guarulhos Km 231 - Saída 211 20.0 km (12.4 mi)
Brazil Rod. Pres Dutra SP/BR-116 São José dos Campos Km 151 - Km 147 (RJ)
Km 153 - 148 (SP)		 3.5 km (2.2 mi) (RJ)
5.0 km (3.1 mi) (SP)
Brazil Avenida das Américas Rio de Janeiro
China G2001 G3 G35 Jinan 24km
Egypt Suez Rd El Shorouk, Cairo Governorate and Attaka, Suez Governorate Shuhada Rd, El Shorouk to the entrance of the City of Attaka 86 km (53 mi)
England A38 (Devon Expressway) Plymouth
England M5 Bristol
England M20 Maidstone
England M55 Preston, Lancashire
England M60 Manchester Sale – Carrington 2.4 km (1.5 mi)
France A 6 south of Paris
France A 9 Montpellier 23.9 km (14.9 mi) The local expressway is known as A709
Hong Kong Prince Edward Road West Hong Kong Lung Kong Road – Choi Hung Road elevated and lower roadway
Hong Kong West Kowloon Highway / Lin Cheung Road Hong Kong
Hungary M35 Debrecen 4.5 km (2.8 mi)
Indonesia Airport Toll Road Jakarta Pluit – Penjaringan
Malaysia North–South Expressway Northern Route Ipoh Jelapang – Ipoh South 7.31 km (4.54 mi) Ipoh North–Ipoh South Local Express Lane
Mexico Avenida Constitución / Morones Prieto Monterrey
Mexico Via Rápida Poniente y Oriente Tijuana
Netherlands A 2 / N 2 around Maastricht, Eindhoven, 's-Hertogenbosch, and Utrecht
Netherlands A 4 around Leiden
Netherlands A 4 The Hague and near Schiphol basketweave braid between two adjacent interchanges
Netherlands A 12 Utrecht
Netherlands A 15 Rotterdam
Netherlands A 16 Rotterdam
Pakistan Lahore Ring Road Lahore 85.0 km (52.8 mi)
Poland S 2 Warsaw 4.2 km (2.6 mi)

(2.92 mi)

map
Russia Leningradsky Avenue Moscow
Scotland M8 Glasgow
Serbia A1 Novi Sad Novi Sad North – Novi Sad South 8.0 km (5.0 mi) serves three interchanges in Novi Sad
Slovakia D1 / Einsteinova Bratislava – Petržalka
South Africa N1 Cape Town Koeberg Road – N7 outbound
Spain AP-7 near Barcelona
Spain M-30 Madrid
Taiwan Nat 1 Taipei New Taipei City and Taipei 32.9 km

(20.4 mi)

Xizhi–Wugu Elevated Road
Taiwan Nat 1 New Taipei City - Taoyuan 71 km (44 mi) Wugu–Yangmei Elevated Road
Turkey D.100 Gebze, Kocaeli
Turkey D.100 Istanbul Beylikdüzü – Cevizlibağ 28.3 km (17.6 mi) on the European side
Turkey D.100 Istanbul Ünalan – Bostancı 9.6 km (6.0 mi) on the Asian side
Turkey D.100 Istanbul Kartal – Pendik 9.9 km (6.2 mi) on the Asian side
Turkey D.300 İzmir Halkapınar – Kemalpaşa 9.1 km (5.7 mi)
Turkey D.300 Malatya through the city center 11 km (6.8 mi)
Turkey Kennedy Avenue Istanbul Yenikapı – Bakırköy 3.5 km (2.2 mi) express lanes for the Eurasia Tunnel
Vietnam Đại Lộ Thăng Long Hanoi Láng – Hoà Lạc 29.3 km (18.2 mi)
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Example of cloverleaf interchanges

[edit]

A cloverleaf interchange may have collector/distributor lane system on a freeway or expressway to handle entering and exiting traffic. Usually, this lane will begin as an entrance-only ramp initially, but it will sometimes become a main lane or possibly an exit-only lane. The purpose of this lane is to facilitate traffic to the freeway exits and from the freeway entrances.

See also

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References

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  1. ^ VDOT: Braided Ramp Demo Archived 2017-04-10 at the Wayback Machine. YouTube (2009-02-26). Retrieved on 2013-07-16.
  2. ^ I-5 196th Braided Ramp animation Archived 2017-04-10 at the Wayback Machine. YouTube (2010-12-02). Retrieved on 2013-07-16.
  3. ^ WSDOT - Project - I-405 – NE 8th St to SR 520 Braided Ramps – Interchange Improvements - Complete May 2012 Archived 2010-07-10 at the Wayback Machine. Wsdot.wa.gov. Retrieved on 2013-07-16.
  4. ^ "Archived copy" (PDF). Archived (PDF) from the original on 2012-02-21. Retrieved 2012-12-11.{{cite web}}: CS1 maint: archived copy as title (link)
  5. ^ TxDOT IH-10 Section 3 Archived 2014-12-01 at the Wayback Machine. PGAL. Retrieved on 2013-07-16.
  6. ^ State Route 180 Braided Ramps Project Archived 2011-12-20 at the Wayback Machine. Dot.ca.gov. Retrieved on 2013-07-16.
  7. ^ Tele Atlas. "Driving directions to Unknown road". Google Maps. Mountain View, U.S. Archived from the original on 2024-01-06. Retrieved 2009-04-30.
  8. ^ Tele Atlas. "Driving directions to King's Hwy 401/MacDonald-Cartier Fwy/Hwy of Heroes". Google Maps. Mountain View, U.S. Archived from the original on 2024-01-06. Retrieved 2009-04-28.
  9. ^ Tele Atlas. "Driving directions to King's Hwy 401/MacDonald-Cartier Fwy". Google Maps. Mountain View, U.S. Archived from the original on 2024-01-06. Retrieved 2009-04-28.
  10. ^ "Highway 401 Expansion Project". Infrastructure Ontario. Archived from the original on 2023-04-15. Retrieved 2023-04-15.
  11. ^ "HIGHWAY 410 COLLECTOR LANES, BRAMPTON – Bot Construction Group". www.botconstruction.ca. Archived from the original on 2021-09-20. Retrieved 2021-09-20.
  12. ^ "HIGHWAY 410 COLLECTOR LANES, BRAMPTON – Bot Construction Group". www.botconstruction.ca. Archived from the original on 2021-09-20. Retrieved 2021-09-20.
  13. ^ "FHWA - Center for Innovative Finance Support - Project Profiles". Federal Highway Administration (FHWA). Archived from the original on 2023-05-15. Retrieved 2023-05-15.
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