Question

8. Identify three road design elements that might be affected by a driver's perception-reaction time 9. In the design of a vertical curve to connect two tangents, explain the relationship between the "K-values" and the rate of change of grade. 10. Identify 3 factors that should be considered in classifying a road as freeway, arterial, collector or local. 11. In two short sentences, explain why there are limits to the maximum side friction factor and superelevation rates for designing horizontal curves. 12 Identify three key lessons learned about designing roads in general from the Highway 407 safety review. 13. Identify three "traffic factors" that need to be considered in the design of an intersection? 14. Identify 3 factors (other than grade and length of grade) that should be considered in determining whether or not a climbing lane is required on an upgrade two-lane road section. 15. Identify two aspects of road design that might be affected by the characteristics of a design vehicle. 16. In one or two short sentences explain the differences between design speed, posted speed and operating speed.

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Answer 1

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