Determine the length of tangent runout and lenght of runoff for a two-lane highway if the pavement is revolved about the centreline in order to achieve fully superelevated cross section. Maximum allowable longitudinal gradient is 1/200 Superelevation = 8% Total carriageway width = 7m (3.5 per direction) Normal crown =1.5%

A temporary, 2 lane road is to be built connecting the 2 westbound lanes of Highway 1 near Tompkins, Saskatchewan with the parallel 2 eastbound lanes, 600 metres to the south (centreline to centreline). This temporary road is comprised of two equal circular, horizontal curves connected by a tangent section, which has a bearing of 045°. For the following data: radius of curvature=500m; maximum superelevation=0.04m/m; maximum side friction=0.12; lane width=3.70m. Find: i) the design speed of the curved sections and ii) the total length of the new pavement required

2. Calculate the total stopping sight distance for a wet pavement condition, if the design speed is 100 Km/hr for the following three conditions. a. Road is flat b. The road has a 6% downslope c. The road has a 3% upslope

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