Shoulder Width

Measurement Number	Shoulder Width (cm)
1	152.40
2	93.98
3	38.10
4	88.90
5	139.70
6	35.56
7	109.22
8	142.24

The shoulder width of the highway was found to be both narrow and inconsistent. Measurements indicated a range of 115 centimetres: a minimum width of 38 centimetres was documented in Porteau Cove, while the maximum shoulder width of the highway was recorded at 153 centimetres. These measurements are of the effective shoulder; that is, the usable width of the shoulder excluding any obstructions such as rumble strips. U.K. regulations recommend a 2 metre wide cycle lane in areas with speed limits greater than 65 km/h (Parkin & Meyers, 2010); however, assessment of the Sea to Sky Highway determined an average shoulder width of 100.01 centimetres. The average width was calculated from 8 individual measurements taken at various locations of the highway - in both northbound and southbound directions - in areas that encapsulated the approximate variation in width. It should be noted that such an average is generous: the widest shoulder width measurements occurred in residential areas (i.e. Lions Bay) where speed limits are considerably slower and cycling is generally safer.

 

                                                                                                                       *Shoulder width measurements along the Sea to Sky Highway

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