| 词条 | Auckland Southern Motorway | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 释义 |
|country= NZL |type= SH |route= 1 |name= Auckland Southern Motorway |map= |length_mi= |length_km= 46 |length_ref= |established= 16 July 1953 |direction_a= North |terminus_a= SH 1 Northern Motorway at Auckland City Centre |junction= SH 16 Northwestern Motorway at Auckland City Centre SH 20 at Manukau City Centre SH 22 at Drury |direction_b= South |terminus_b= SH 1 Waikato Expressway at Bombay |destinations= Auckland City Port Auckland Airport Manukau Papakura Drury }} The Auckland Southern Motorway (also known as the Southern Motorway, and historically as the Auckland–Hamilton Motorway) is the major route south out of the Auckland Region of New Zealand. It is part of State Highway 1. The motorway is 45 kilometres in length, with 28 junctions including termini. It runs from the Central Motorway Junction in central Auckland, through Manukau City, Papakura, and Drury, before terminating onto the Waikato Expressway at the top of the Bombay Hills. RouteThe Southern Motorway starts just north of the Central Motorway Junction (Spaghetti Junction) on the west side of central Auckland. The motorway is a direct extension of the Northern Motorway, which changes to the Southern Motorway just south of exits 424C and 424D. For the first kilometre, the road is two lanes each way due to the constraints of the Victoria Park Viaduct to the north. The motorway then delves deep into the Central Motorway Junction, turning eastward to form a southern boundary to the Auckland CBD, the turning south-eastwards as it leaves the junction. There are several exits northbound only through the junction, connecting to the city centre and the Northwest Motorway. South of the junction is the busiest section of the motorway, and busiest section of road in New Zealand carrying an average of 200,000 vehicles per day, and to cope with this, the short section between Khyber Pass Road and Gillies Avenue is five lanes wide each way. A large volume of traffic leaves at Gillies Ave to head for Auckland International Airport. The motorway then crosses the narrow Newmarket Viaduct, before turning to follow the North Auckland Rail Line to Ellerslie. At Ellerslie, the motorway leaves the railway line and skirts around Penrose, heading in a south-easterly direction towards Hamlins Hill where there are junctions with the South-Eastern Highway (Southbound exit and northbound entrance only) and the Mt Wellington Highway. Immediately after the Mt Wellington Highway interchange, the motorway curves south to head towards the Tamaki River. After crossing the Tamaki River, the motorway forms a boundary between the suburbs of Papatoetoe to the west and Otara to the east. At Manukau City Centre, the motorway has a major junction with the South-Western Motorway and then bypasses Manurewa to the east. The motorway then curves towards the south-westerly direction where it crosses Great South Road at the Takanini interchange. The motorway once again curves south and bypasses Papakura to the west. At Drury, the motorway has a junction with State Highway 22, before heading south towards the Bombay Hills. At the Bombay interchange, the motorway becomes the Waikato Expressway and continues on south towards the Waikato. HistoryThe first section of the Southern Motorway opened on 16 July 1953, between Ellerslie-Panmure Highway and Mount Wellington Highway (Exit 438). It was quickly extended southwards in 1955 to Redoubt Road to provide a higher-capacity and faster alternative to Great South Road between Ellerslie and Wiri. In 1963, the motorway was extended at both ends, the northern terminus was moved north to Green Lane East and the southern terminus was moved south to Takanini to allow traffic to bypass Manurewa. Both ends were extended again in 1965, the northern end to St Marks Road at the southern end of the Newmarket Viaduct, the southern end to Great South Road at Runciman, just south of the current Drury interchange. In 1966, the Newmarket Viaduct was opened, and the northern terminus was extended to Khyber Pass Road, bypassing Newmarket. An extension was also opened for northbound traffic to Symonds Street. In 1969, the motorway was extended to Wellesley Street, allow traffic in both directions to access the central city. A Symonds Street on-ramp for southbound traffic opened in 1971. Much of the mid-1970s construction on the Southern Motorway involved building on-ramps and off-ramps in the Central Motorway Junction. Ramps to the western side of the CBD at Nelson Street and Hobson Street opened for southbound traffic in 1973 and northbound traffic in 1977. Ramps to Grafton Road, allowing access to the Port of Auckland, opened to southbound traffic in 1975 and northbound traffic in 1978. In 1978, the southern end was extended to Great South Road at St Stephens on the northern side of the Bombay Hills and the northern end was extended to the Northern Motorway at Cook Street/Wellington Street, allowing continuous motorway travel from Tristam Avenue on the North Shore to St Stephens. In 1988, ramps opened to allow direct motorway access between the Southern Motorway and the Northwestern Motorway. In 1993, the southern end of the motorway was extended to Mill Road, near Bombay. The extension bypassed the traffic light-controlled crossroads at St Stephens, known to be an accident blackspot and causing delays of up to two hours during holiday periods. Accompanying the extension was the building of the first part of the Waikato Expressway, which allowed traffic from the Southern Motorway to have a clear run as far as the State Highway 2 interchange on the south side of the Bombay Hills.[1] In 2010 the interchange between the Southwestern Motorway and Southern Motorway at Manukau became fully operational. On 29 January 2012 the replacement Newmarket Viaduct was opened to northbound traffic. The 7-lane (4 south, 3 north) bridge replaced the existing 6-lane structure by moving it northwards in stages. The remaining ancillary parts of the project are due for completion in 2013.[2] Abandoned project
Interchanges
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