Windsor, ON, is not accustomed to significant snowfalls. In the past few years, however, the snow has been relentless. Determined to be prepared this year, the city manager has requested a capacity plan from WDOT (Windsor Department of Transportation). The roads for which the city is responsible include 10 km of six-lane highways, 25 km of four-lane primary roads, and 50 km of two-lane secondary roads. The standard coverage for keeping roads clear during inclement weather is three passes over highways during a 12-hour time period, two passes over primary roads, and one pass over secondary roads. Windsor has 10 snowplows with a maximum speed of 50 km/h that can clear the width of one lane at a time. During a 5-cm snowfall, the plows are running at 90% efficiency. The efficiency (measured by speed) decreases with the amount of snowfall to 75% during a 10-cm snowfall, 50% for a 20-cm snowfall, and 30% for a 40-cm or greater snowfall. During a normal 8-hour day, workers take one hour total for breaks and lunch. The same ratio is used for 12-hour shifts. This downtime is especially important during inclement weather, as the drivers need to warm up and refocus, and excess snow and salt need to be removed from the equipment. Prepare a snow removal capacity plan for Windsor roads that includes: An estimate of the capacity to clear roads in a 12-hour period expressed in kilometers per type of snowfall (5 cm, 10 cm, 20 cm, and 40 cm or greater). An estimate of the total workload (in kilometers travelled) over a 12-hour period to keep roadways clear, and per type of road (highway, primary, and secondary). An estimate of the current load percent, and a recommendation for adjusting the workload when load percent exceeds 100%. Three alternative recommendations for improving service by expanding capacity and/or reducing the workload. (Budget limitations would allow at most the purchase of five extra snowplows.)