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William R. Allen Road, also known as Allen Road and The Allen is a short expressway/freeway and arterial road in Toronto, Canada. It starts as a controlled-access expressway at Eglinton Avenue West north to Transit Road and then continues as an arterial road north to Kennard Avenue and Dufferin Street. Allen Road is named after late Metro Toronto Chairman William R. Allen and is maintained by the City of Toronto. Landmarks along the road include the Lawrence Heights housing project, Yorkdale Shopping Centre and Downsview Park (formerly CFB Downsview). A section of the Toronto subway Line 1 Yonge–University is located within its median from Eglinton Avenue to Sheppard Avenue. The portion south of Sheppard Avenue was originally constructed as part of the Spadina Expressway project. The Spadina Expressway was a proposed north-south freeway, intended to connect downtown Toronto to the suburb of North York, and to serve the Yorkdale Shopping Centre project. It was only partially built before being cancelled in 1971 due to public opposition. It was proposed in the mid-1950s as part of a network of freeways for Metro Toronto. Its cancellation prompted the cancellation of the rest of the network. == Route description == The road begins at Eglinton Avenue West with two separate signalized intersections with the street. The northbound lanes intersect with Eglinton to the east of the Eglinton West subway station, and the two southbound lanes connect to Eglinton Avenue west of the station. The road proceeds north to Lawrence Avenue West as a four-lane freeway with a speed limit of in the northerly direction and 80 km/h until north of Eglinton Avenue. The tracks of Line 1 Yonge–University are situated between the roadways. There is a subway station at Glencairn Avenue. The roadway and subway are situated in a cut-out section of land, with grass and trees on either side. The roadway intersects with Lawrence Avenue West with on- and off-ramps which are signalized. The Lawrence West subway station and bus terminals are located between the two roadways. From Lawrence Avenue north, the roadway is six-lanes, with a speed limit of 80 km/h. The Allen connects to Yorkdale Road by on- and off-ramps. The Yorkdale subway station is located between the two roadways, and over the Yorkdale connecting ramps. For a short stretch, the Allen is eight lanes, the lanes connected to the Yorkdale Road exits. On either side of the road through this stretch concrete retaining walls were built on both sides. The interchange of the Allen and Highway 401 is a hybrid of the ''turbine'' and ''clover-stack''. The Allen proceeds on bridges over the lanes of the 401, with ramps from the Allen to 401 passing overhead. The interchange also serves to connect Yorkdale Road with the 401. The exit from the northbound Allen to the 401 serves as a ramp to both directions of the 401, with two lanes proceeding north of the 401. Similarly, two lanes are provided southbound over the 401, and access from the eastbound and westbound 401 merges with the Allen south of Yorkdale Road. Access to Yorkdale Road from the east-bound 401 is provided at the partial Dufferin Avenue interchange to the west. The southbound ramp from the Allen to the eastbound 401 flies over the whole interchange and connects with the eastbound 401 collector lanes. The interchange is one of the few on Highway 401 that uses conventional light poles instead of high-mast lighting due to nearby Downsview Airport. The subway is situated on bridges over the 401 between the northbound and southbound lanes. From north of the 401, the Allen is four or six lanes, passes over Wilson Avenue (with the Wilson subway station being above the namesake avenue within Allen Road's median), and meets with Transit Road at a signalized intersection. The subway diverges from the route just north of Wilson Avenue, with a large subway yard and bus garage, known as Wilson Yard, to the west of the road. Just south of Transit Road, a partial interchange with Wilson Heights is provided. It was the former northern terminus of the road until 1982. North of Transit Road, Allen Road is an arterial road of four- or six-lanes, meeting Sheppard Avenue West at a signalized intersection. The Downsview subway station on the east side of the intersection, with the bus bay being on the southeast corner. Allen Road's speed limit at that section is . It continues north, still maintaining the higher speed limit with signalized intersections at Rimrock and Kennard Avenue. The road becomes Dufferin Street north of Kennard Avenue. The roadway is lit by high pressure sodium with shaded luminaires on cobra-neck poles. The original installation was low-pressure sodium lighting in 1969. It was the first installation of low pressure sodium lighting on existing cobra-neck poles in Toronto. This was later introduced to the Don Valley Parkway and Gardiner Expressway. In 1991, the Allen became the first municipal expressway in Toronto to have its lighting converted to high pressure sodium with shaded luminaires. This was done using the existing cobra-neck style of poles unlike the Don Valley and Gardiner where a combination of high mast and new conventional poles was introduced. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Allen Road」の詳細全文を読む スポンサード リンク
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