Ontario Highway 427

King's Highway 427 (pronounced "four twenty-seven"), also known as Highway 427 and colloquially as the 427, is a 400-series highway in the Canadian province of Ontario that connects the Queen Elizabeth Way (QEW) and Gardiner Expressway in Toronto to Highway 401 and with York Regional Road 7 (formerly Highway 7) further north in the City of Vaughan. An arterial extension, known as York Regional Road 99, continues 800 metres (2,600 ft) north to Zenway Boulevard. It is Ontario's second busiest freeway by volume and third busiest in North America, behind Highway 401 and Interstate 405 in California.[1][3] Like Highway 401, a portion of the route is divided into a collector-express system with twelve to fourteen continuous lanes. Notable about Highway 427 are its several multi-level interchanges; the junctions with the QEW/Gardiner Expressway and Highway 401 are two of the largest interchanges in Ontario and were constructed between 1967 and 1971, while the interchanges with Highway 409 and Highway 407 were completed in 1992 and 1995, respectively.

Highway 427
Highway 427 (in red) within Ontario, Canada, with the Greater Toronto Area enlarged in the inset
Route information
Length19.9 km[1] (12.4 mi)
ExistedDecember 4, 1971[2]–present
Major junctions
South end Queen Elizabeth Way / Gardiner Expressway  in Toronto (Continues as Browns Line)
  Highway 401 in Vaughan
 Highway 407 in Vaughan
North end Regional Road 7 (Highway 7) in Vaughan (Continues as  Regional Road 99)
Highway system
← Highway 420QEW →

Highway 427 is the main feeder to Toronto Pearson International Airport from the north and south. However, while much of the traffic from Highway 407, Highway 401 (eastbound), and the QEW/Gardiner Expressway makes use of the freeway for airport access, it also serves as a major traffic route for the western portion of Toronto (Etobicoke), the northeastern portion of Mississauga (Malton), the southeastern portion of Brampton (Claireville), and the western portion of Vaughan (Woodbridge). The section between Highway 401 and Dundas Street is a heavily traversed transit corridor; the 1.61-kilometre (1.00 mi) stretch between Burnhamthorpe and Rathburn saw an average of over 400,000 vehicles and over 5,000 buses per day in 2016.[4] GO Transit, MiWay, and the Toronto Transit Commission (TTC) all operate express buses along this section of the highway.

First designated in 1972, Highway 427 assumed the recently-completed 12-lane collector-express freeway of Highway 27, as well as a short freeway north of Highway 401 known as the Airport Expressway. Both routes were upgraded throughout the 1950s and 1960s, eventually becoming intertwined into the present configuration in 1972. The freeway was extended north from Pearson Airport to Highway 7 over the following twenty years. A short arterial extension was later built past Highway 7 to Zenway Boulevard, though this section is designated as York Regional Road 99. Plans have been announced to extend Highway 427 north to Major Mackenzie Drive; construction began in 2017 and is expected to be completed by 2021.[5]

Route description
Highway 427 begins at a complicated interchange with the Queen Elizabeth Way (QEW) and Gardiner Expressway.

Highway 427 is the second-busiest freeway in Canada with an average of 300,000 vehicles that use it between the QEW and Highway 401 per day. The section between Burnhamthorpe Road and Rathburn Road has an annual average daily traffic (AADT) count of 353,100. The route is 19.9 km (12.4 mi) long.[1]

At its southern terminus, the route begins at Coules Court, where it continues as Brown's Line, once the southernmost stretch of Highway 27 .[1] Alderwood Plaza, located on the east side of the route, has a parking lot which provides access to the highway; this is the only at-grade access along the length of the route.[6] The four-lane road splits into a divided highway and descends below Evans Avenue. The highway weaves through a complicated interchange, providing northbound access to Evans Avenue and the Gardiner Expressway, and southbound access to The Queensway, QEW/Gardiner Expressway, and Evans Avenue. North of the interchange, the lanes from Brown's Line diverge and form the collector lanes of a collector-express system. Flyover ramps to and from the QEW/Gardiner pass over the southbound lanes and converge to form the express lanes. This collector-express system serves to divide local traffic from freeway-to-freeway traffic; the express lanes provide access between the QEW/Gardiner Expressway and Highway 401, while the collector lanes provide local access between those interchanges.[7]

Highway 427 south of Eglinton Avenue features a collector-express system.

After crossing Canadian Pacific Railway (CPR) tracks, the freeway interchanges with Dundas Street. A set of criss-crossing ramps provide access between the collector and express lanes north of this point,[7] referred to as "The Basketweave." The highway passes beneath Bloor Street West but does not provide direct access. Instead, it provides ramps to parallel arterial roads; The East Mall and The West Mall run parallel with the freeway from Evans Avenue to Rathburn Road.[6] A full interchange is provided shortly after with Burnhamthorpe Road, southwest of Burnhamthorpe Collegiate Institute. Across from the school, an off-ramp provides access from the southbound lanes to Holiday Drive and The West Mall. Following the off-ramp, to the north, is a partial interchange with Rathburn Road, which provides access from the northbound lanes and to the southbound lanes.[7]

Transfers provide a second and final opportunity to cross between the express and collector lanes, or vice versa, south of the complicated 1.56-square-kilometre (0.60 sq mi) Highway 401 interchange. A final set of ramps along the collector-express system provides access to and from the southbound lanes and Eringate Drive, after which the collector lanes diverge, and the express lanes cross the southbound collector lanes. The collector lanes provide access to and from Eglinton Avenue, then transition into Highway 27, while the express lanes interchange with Highway 401 and continue the route of Highway 427. The Highway 427 express lanes and flyover ramps to and from Highway 401 are constructed around the Richview Memorial Cemetery.[7][8] Highway 427 passes through the sprawling Highway 401 interchange and becomes displaced approximately 1 km (0.62 mi) to the west. There are no ramps to provide access from southbound Highway 427 to eastbound Highway 401 and vice versa, as this connection is handled by Highway 409.[6] Highway 427 crosses Renforth Drive and then curves to the east of Runway 24R and 24L of Toronto Pearson International Airport.[9] Shortly thereafter, it crosses and interchanges with Dixon Road and Airport Road, between which it forms the demarcation line.[7] Several ramps diverge at this point to provide access to Pearson Airport, and the freeway narrows to eight lanes.[6]

From here to just south of Finch Avenue, the freeway follows the boundary line between Toronto and Mississauga.[7] It encounters the third multi-level junction along its length, with Highway 409, which provides access to the airport as well as the southbound to eastbound movement that cannot be performed at the interchange with Highway 401 to the south.[6] Highway 427 continues straight north and narrows again to six lanes.[6] After crossing the Kitchener GO line, it passes west of Woodbine Racetrack and beneath Rexdale Boulevard, Morning Star Drive, and Finch Avenue. The freeway bends slightly eastward, diverging from the Mississauga–Toronto boundary, and crosses the West Humber River where it drains from Claireville Reservoir.[7] Approaching the fourth and final sprawling interchange, the highway crosses Steeles Avenue and enters Vaughan.[6] It passes beneath Highway 407 and crosses through an undeveloped area before terminating at its final interchange with Highway 7.[6][7] The mainline continues north as a four-lane arterial road to Zenway Boulevard and is designated as York Regional Road 99,[1][7] which is slated to be removed when the extension of the highway opens in 2020.[10]

The interchange between Highway 427 and Highway 409 was built to its current configuration by 1992.

History
An aerial view, facing north, of the reconstruction of Highway 27 to a four lane freeway during the early 1950s

QEW to Highway 401 (1953-1956)
See also: Ontario Highway 27

Although Highway 427 was not officially designated until 1972,[11] several sections of freeway were already in place prior to that date. The designation was applied following the completion of the interchanges at the QEW and Highway 401 as well as the expansion of the section between them into a collector-express system.[2]

Highway 27 was designated as a two-lane road travelling north from Highway 2 (Lake Shore Boulevard) towards Barrie. As Toronto grew outwards following the annexation of various municipalities, the Ontario Department of Highways (DHO) began planning for a bypass of the city, aptly named the Toronto Bypass. A significant portion of this bypass was designed to be incorporated into the Transprovincial Highway, now Highway 401. The remainder was designed to follow the existing right-of-way of Highway 27 between the QEW and Richview Sideroad (now Eglinton Avenue).[12]

Construction of the Toronto Bypass began near Yonge Street in 1949 (along present-day Highway 401) and on the four-laning of Highway 27 in 1953.[13][14] The Highway 27 work involved the construction of two interchanges: a three-way stack at Highway 401 and a large cloverleaf at the QEW, the latter of which would become one of the worst bottlenecks in the province a decade after its completion, according to Minister of Transportation Charles MacNaughton.[15] By September 1956, it was possible to bypass Toronto entirely on the four lane divided highway composed of Highway 401 and Highway 27.[16][17] Highway 401 was extended to the west soon after,[18]but Highway 27 remained a two-lane highway north of it.[19]

An aerial photograph of the Airport Expressway in 1964

Airport Expressway (1964-1971)

During the early 1960s, Toronto International Airport was expanded with the construction of the Aeroquay One terminal.[20] To serve the expected demand of the expansion, the DHO built a new four-lane freeway north from Highway 401 at Renforth Drive. This new route, which roughly followed the same route as today's Highway 427 as far as Dixon/Airport Road, was known as the Toronto Airport Expressway and was opened on January 3, 1964.[21][22] It featured a connection with the western terminus of Richview Sideroad at the southern end of the interchange with Highway 401 as well as an interchange with Renforth Drive.[21]

Expansion (1963-1971)
Completed grading on the reconstruction of Highway 27 in 1954. The Highway 401 overpass is visible in the background.

In 1963, MacNaughton announced that Highway 401 would be widened from a four-lane highway to a collector-express system, modelled after the Dan Ryan Expressway in Chicago.[17] Plans were soon developed to apply this model to the QEW between Highway 27 and Royal York Road and to Highway 27 between the QEW and Highway 401, and were unveiled to Etobicoke council on October 13, 1966.[23] Design work followed and was completed by May 1967.[24] This reconstruction once again involved the junctions with the QEW and Highway 401, which were reconfigured into complicated multi-level interchanges to permit free-flow movement; construction began in September 1968.[25] The widening of Highway 27 required the demolition and rebuilding of overpasses at Bloor Street, Burnhamthorpe Road, and Rathburn Road constructed just over a decade earlier.[24]

The junction with Highway 27 was built over 48.5 ha (120 acres) and required the construction of 19 bridges and the equivalent of 42 km (26 mi) of two-lane roadway. Construction began in September 1968,[25] although preliminary work had been ongoing since 1966;[26] the interchange opened to traffic on November 14, 1969.

The Semi-directional T junction with the QEW was built over 48.5 ha (120 acres) and required the construction of 19 bridges and the equivalent of 42 km (26 mi) of two-lane roadway, with the two sets of flyovers (defaulting express lane traffic to the QEW and vice versa) soaring over the collector lanes to Browns Line (plus their connecting ramps to The Queensway and Evans Avenue).[25] The junction with Highway 401 remains the largest interchange in Canada as it sprawls over 156 ha (385 acres) and required the construction of 28 bridges and the equivalent of 46.6 km (29 mi) of two-lane roadway, being built around the existing Richview Memorial Cemetery, and including connections to Eglinton Avenue (ultimately meant for the proposed but never-built municipal Richview Expressway).[27] The interchange with the QEW was opened to traffic on November 14, 1969,[28] while the Highway 401 junction required several more years of construction staging, fully opening on December 4, 1971 (though portions were opened in the weeks prior to that[29]), just prior to Highway 27's renumbering as Highway 427. The rest of the route was rebuilt prior to the completion of these interchanges.[2]

Highway 427 featured an at-grade intersection until 1992, when it was replaced by a flyover ramp.

The completed project resulted in the creation of Highway 427 between the QEW and Dixon/Airport Road, north of which traffic was defaulted onto Indian Line. The entire existing Airport Expressway was removed to make way for the new interchange with Highway 401, but its replacement in the form of the Highway 427 extension (also known as the Airport Expressway) still included direct access to the airport.[24][30]

Extensions beyond Highway 401 (1976-1994)
A diagram superimposing the Airport Expressway and the current Highway 401–427 interchange

Ultimately, it was planned to extend Highway 427 north along Indian Line to the future Highway 407, where ramps would direct northbound traffic onto Highway 27.[24] An extension north of Dixon/Airport Road began in 1976 as part of the work to build Highway 409,[31] and it included the construction of the interchange between the two freeways. By the beginning of 1980, this work was completed, and construction was progressing on the section north to Rexdale Boulevard, which opened by the end of the year.[32][33] In 1982, construction began on the next section of Highway 427, which would extend it to Albion Road, north of the West Humber River.[34] This project included the extension of Finch Avenue west from Highway 27 to Steeles Avenue West and was completed in late 1984.[35]

Nearly-completed Hwy. 427 widening work as seen from the Morning Star Drive overpass in June 2018

As part of the initial phase of Highway 407, Highway 427 was extended north to Highway 7 in Vaughan beginning with the construction of the interchange between the two in 1988.[36]

With the interchange only half-completed, the extension was opened in late 1991.[37] By 1994, the final at-grade intersections—the first being the left turn from the southbound lanes with eastbound Highway 409 after the completion of that interchange, and the second being at Morning Star Drive, where an overpass was constructed to extend the street across the freeway to Humberwood Boulevard—were removed, making Highway 427 a fully controlled-access freeway for its entire length.[38]

Recent construction

A section of Highway 427 between Campus Road-Fasken Drive and Steeles Avenue is currently being expanded to four lanes in each direction.[39] This project includes the installation of high-mast lighting, median barriers, and the addition of high-occupancy toll lanes in both directions, and is nearing completion as of the spring of 2020.

Future
See also: Highway 427 BRT
Highway 427 extension under construction in March 2020, looking south to the Langstaff Road overpass

An environmental assessment was completed on a northward extension of Highway 427 to Major Mackenzie Drive to relieve traffic issues on Highways 27 and 50, as well as provide improved access to the Canadian Pacific Intermodal Terminal,[10] and construction began in May 2017.[40] The project will include HOT lanes as far north as Rutherford Road. The extension is scheduled to open in 2021, with the HOT lanes opening the following year.[41]

A temporary arterial road extension was opened in the autumn of 2008 by York Region and designated as Regional Road 99. This road serves to provide improved access to Highway 27 and Highway 50, but will be removed when construction is completed on the freeway extension.[10][42]

The extension is being built by Link 427, a consortium of six companies that tendered the winning bid to Infrastructure Ontario.[43] The project is estimated to cost $616 million,[44] and will include the design, financing, and construction of the extension, as well as its maintenance for thirty years.[45] Construction will require periodic closure of eleven roads, including Regional Road 99 (the extension of Highway 427 from Highway 7 to Zenway Boulevard); McGillivray Road, which will be realigned at Rutherford Road; and the intersection of Huntington Road and Major Mackenzie Drive.[44]

There was some consideration to extending Highway 427 farther north towards Barrie and beyond in the early 2000s. Connections with the Bradford Bypass freeway, as well as Highway 400 and Highway 11 north of Barrie were considered. In the past decade, there has been little discussion of this highway extension due to concerns with traversing the Oak Ridges Moraine and Minesing Swamp.[46][47]

Exit list

The following table lists the major junctions along Highway 427, as noted by the Ministry of Transportation of Ontario.[1] All exits are unnumbered.

DivisionLocationkm[1]miDestinationsNotes
 Highway 427 continues south as Brown's Line
Toronto0.00.0Coules CourtSouthbound terminus of Highway 427
0.30.19Evans AvenueNo access to Gardiner Expressway from northbound entrance
0.60.37 Queen Elizabeth Way – Hamilton, Niagara Falls
Gardiner Expressway – downtown Toronto		Southbound exit and northbound entrance; other movements are directed to Evans Avenue
Sherway Gardens Road
The Queensway		No northbound exit; no access to QEW from southbound entrance.
2.31.4Dundas StreetFormerly Highway 5; no access to QEW from southbound entrance; incorrectly signed as Regional Road 5
Gibbs RoadNorthbound entrance only
Valhalla RoadNorthbound exit only
Eva RoadSouthbound exit and entrance
4.22.6Burnhamthorpe Road
Holiday DriveSouthbound exit only
5.23.2Rathburn RoadNorthbound exit and southbound entrance
Eringate DriveSouthbound entrance only; southbound exit accessible from Highway 27 and Eglinton Avenue
7.84.8Eglinton AvenueNo access to Highway 401 east from northbound entrance
Highway 27 northNorthbound exit and southbound entrance
 Highway 401
Toronto–Peel boundaryToronto–Mississauga boundary10.36.4  Regional Road 7 (Airport Road) west /
Dixon Road east		Northbound exit and southbound entrance, access to Toronto Pearson International Airport
Fasken DriveNorthbound exit only
11.67.2 Highway 409Southbound access to eastbound 401 via Highway 409, access to Toronto Pearson International Airport. Former southbound access via traffic signal, replaced by a ramp in 1994.
14.28.8 Regional Road 5 (Derry Road) west /
Rexdale Boulevard east
Morning Star DriveSignalized intersection closed in 1994 after an overpass was constructed
Toronto16.09.9Finch Avenue
Etobicoke General Hospital
YorkVaughan18.311.4 Highway 407Toll highway
19.912.4 Regional Road 7 (Highway 7) – Brampton, MarkhamFormer  Highway 7; Northbound exit and southbound entrance
 Highway 427 continues north for 700 m (2,300 ft) as  Regional Road 99
 Highway 427Highway 427 is currently being extended north to  Regional Road 25 (Major Mackenzie Drive) .
YorkVaughan Regional Road 72 (Langstaff Road)
 Regional Road 73 (Rutherford Road)
 Regional Road 25 (Major Mackenzie Drive)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Closed/former
  •       Tolled
  •       Unopened

References

Sources
  1. Ministry of Transportation of Ontario (2010). "Annual Average Daily Traffic (AADT) counts". Government of Ontario. Archived from the original on July 6, 2011. Retrieved June 29, 2015.
  2. "Highway 27 Interchange Fully in Service". The Globe and Mail. Toronto. December 4, 1971. p. 5.
  3. Office of Highway Policy Information (July 27, 2010). "Most Travelled Urban Highways Average Annual Daily Traffic (AADT) > 250,000". Federal Highway Administration. Retrieved June 30, 2014.
  4. "Ontario Provincial Highways Traffic Volumes On Demand". www.raqsa.mto.gov.on.ca. Archived from the original on 2017-12-17. Retrieved 2018-01-06.
  5. Searle, Patrick; Nichols, Bob (March 3, 2016). "Ontario Moving Forward on Highway 427 Extension" (Press release). Ministry of Transportation of Ontario. Retrieved August 27, 2016.
  6. Google (November 7, 2011). "Highway 427 length and route" (Map). Google Maps. Google. Retrieved November 7, 2011.
  7. MapArt (2011). Golden Horseshoe (Map). Peter Heiler Ltd. pp. 101, 107, 113, 118, 353. § A2–T5, X–Z3. ISBN 978-1-55198-877-1.
  8. Bradburn, Jamie (October 29, 2012). "Toronto Cemetery Sojourns: Richview Memorial Cemetery". Torontoist. Torontoist. Retrieved June 13, 2015.
  9. "Aviation Investigation Report: A01O0299". Greater Toronto Airport Authority. 2001. Appendix A. Retrieved November 7, 2011.
  10. Rea, Bill (April 23, 2008). "MTO Just Looking North to Major Mack For 427 Extension". King Township Sentinel. King City, Ontario. Archived from the original on June 11, 2015. Retrieved January 9, 2012.
  11. Sewell 2009, p. 70.
  12. "Speed Limit In Ontario Now At 60". The Ottawa Citizen. May 29, 1959. p. 23. Retrieved March 25, 2010.
  13. Sewell 2009, p. 63.
  14. Clarke, W.A (March 31, 1954). "Report of the Chief Engineer". Annual Report (Report). Department of Highways. p. 12.
  15. "Six-Mile Stretch of Highway 27 Will Be Expanded to Six Lanes". The Globe and Mail. Toronto. May 4, 1965. p. 5.
  16. '401' The Macdonald–Cartier Freeway. Ministry of Transportation and Communications. 1972. p. 8.
  17. Shragge & Bagnato 1984, p. 94.
  18. Ministry of Transportation and Communications (November 3, 1958). Hwy. 10 to Hwy 27. (Toronto) 6.60. Ministry of Transportation and Communications. pp. 8–9.
  19. Department of Highways (1956). Ontario Road Map (Map). Cartography by C.P. Robins. Government of Ontario. § E30–F33.
  20. Lostracco, Marc (October 12, 2006). "Torontoist Remembers: Aeroquay One". Torontoist. Ink Truck Media. Retrieved January 9, 2012.
  21. Annual Report (Report). Department of Highways. March 31, 1964. p. 108.
  22. "Chronology". Annual Report (Report). Department of Highways. March 31, 1965. p. 302.
  23. "Chronology". Annual Report (Report). Department of Highways. March 31, 1967. p. 315.
  24. Planning Branch (May 1967). Functional Planning Report: Highway 27 Reconstruction from Dundas Street to Rexdale Boulevard and Proposed Belfield Expressway from Islington Avenue to New Highway 27 (Report). Ontario Department of Highways.
  25. "Drivers Face Three More Years of QE-27-401 Motoring Misery". The Toronto Star. July 22, 1969. p. 43.
  26. "Summary of the Report". Annual Report (Report). Department of Highways. March 31, 1967. p. xvi.
  27. "A New Maze in the Making for Motorists". The Globe and Mail. Toronto. November 20, 1969. p. 43.
  28. "QE and 27 Interchange Opens Friday". The Toronto Star. November 13, 1969. p. 1.
  29. "2 Ramps Opened at 27-401". The Toronto Star. November 24, 1971. p. 1.
  30. Ministry of Transportation and Communications (1973). Ontario Road Map (Map). Cartography by Photogrammetry Office. Government of Ontario. Metropolitan Toronto inset.
  31. Construction Program (Report). Ministry of Transportation and Communications. 1976–77. p. XIV.
  32. Construction Program (Report). Ministry of Transportation and Communications. 1980–81. p. XIX.
  33. Ministry of Transportation and Communications (1980–81). Ontario Road Map (Map). Cartography by Cartography Section. Government of Ontario. Metropolitan Toronto inset.
  34. Provincial Highways Construction Projects (Report). Ministry of Transportation and Communications. 1983–84. p. XIII. ISSN 0714-1149.
  35. Provincial Highways Construction Projects (Report). Ministry of Transportation and Communications. 1984–85. p. XIII. ISSN 0714-1149.
  36. Provincial Highways Construction Projects (Report). Ministry of Transportation. 1989–90. p. 13. ISSN 0714-1149.
  37. Provincial Highways Construction Projects (Report). Ministry of Transportation. 1991–92. p. 13. ISSN 0714-1149.
  38. Ministry of Transportation (1994–95). Ontario Road Map (Map). Cartography by Cartographic Mapping Unit. Government of Ontario. Metropolitan Toronto inset.
  39. Searle, Patrick; Woozageer, Ajay (August 26, 2014). "Improvements Begin on Highway 427" (Press release). Ministry of Transportation of Ontario. Retrieved September 3, 2014.
  40. "Highway 427 Expansion". www.infrastructureontario.ca. Retrieved 2017-09-25.
  41. Searle, Patrick; Nichols, Bob (March 3, 2016). "Ontario Moving Forward on Highway 427 Expansion" (Press release). Ministry of Transportation of Ontario. Retrieved March 8, 2016.
  42. Highway 427 Transportation Corridor Environmental Assessment Final Report (PDF) (Report). Ministry of Transportation of Ontario. January 29, 2010. Retrieved January 9, 2012.
  43. "Ontario picks construction consortium to build Highway 427 extension". Canadian Manufacturing. 26 January 2017. Retrieved 20 December 2017.
  44. Martin-Robbins, Adam (9 June 2017). "Hwy. 427 extension through Vaughan will require 11 road closures". Vaughan Citizen. Retrieved 20 December 2017.
  45. "Ontario 'moving forward' with plans to extend Highway 427 to Vaughan: minister". CBC News. CBC News. 3 March 2016. Retrieved 20 December 2017.
  46. "Proposed transportation corridor expansions". Neptis. Neptis. 2014. Retrieved February 11, 2018.
  47. Proposed 400 Series Highway Extensions for the Greater Toronto and Niagara RegionsProposed transportation corridor expansions (PDF) (Report). Pembina. January 1, 2004. Retrieved February 11, 2018.

Bibliography
  • Sewell, John (2009). The shape of the suburbs: understanding Toronto's sprawl. University of Toronto Press. ISBN 978-0-8020-9587-9. Retrieved April 15, 2010.
  • Shragge, John; Bagnato, Sharon (1984). From Footpaths to Freeways. Ontario Ministry of Transportation and Communications, Historical Committee. ISBN 978-0-7743-9388-1.

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