数学建模竞赛论文写作.pptVIP

6. It has been suggested that in 1999 some of the coastal residents of Georgia and Florida, who were fleeing the earlier predicted landfalls of Hurricane Floyd to the south, came up I-95 and compounded the traffic problems. How big an impact can they have on the evacuation traffic flow? Construct a Model Requires Clearly identify what measures of performance are used to compare strategies. Prepare a short newspaper article, not to exceed two pages, explaining the results and conclusions of your study to the public. (1)?? The interstates (e.g., I-26, I-77, I-20) have two lanes of traffic in each direction except in the metropolitan areas where they have three, which means the traffic entering a metropolitan (such as Columbia) can be smoothly separate into the routes leaving it in most case. (2)?? The normal drive takes two hours to complete from Charleston to Columbia. The average drive speed for a car on the interstate I-26, I-77, and I-20 is limited to 60-80 mph, while the one for a car on principal roads (e.g., US501) is limited to 50-70 mph. Assumptions (3)?? Charleston has approximately 500,000 people, Myrtle Beach has about 200,000 people, and another 250,000 people are well-distributed along the rest of the coastal strip. Also, we should consider some evacuees from the coastline of Georgia and Florida in Question 6. Assumptions (4) Columbia has around 500,000 people. And, according to our rough search via Internet, the total number of the hotels and motels in Columbia and beyond Columbia, SC, is about 184, which can occupy around 50,000 people. Hence, Columbia does not have sufficient hotel space to accommodate the evacuees (including people coming from farther north by other routes). So, some traffic must continue outbound on I-26 towards Spartanburg; on I-77 north to Charlotte; and on I-20 west to Atlanta. Assumptions (5)?? There are several tropical cyclone guidance models available to the NHC and CPHC forecasters for the hurricane season. These models