2015 HiMCM A题特等奖学生论文下载6083

2015 HiMCM A题特等奖学生论文下载6083

 

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论文摘要如下：

As you know, traffic congestion is a significant issue that adversely affects many roads. In our study, we attempted to develop a method to refine the flow of vehicles near lane closures, as these areas frequently cause traffic congestion. At the same time, we wanted to ensure that this system was fair for all drivers. Based on our findings, there are specific guideline and signage changes we strongly recommend you adopt.

Firstly, we suggest that something must be done to influence drivers to merge later rather than earlier. While it is understandable that many drivers merge early because they fear not doing so will result in risky maneuvers, this practice imbalances the distribution of vehicles between the two lanes and often times results in traffic jams. On the other hand, late lane merging allows both lanes to be optimally used and thus improves efficiency in traffic flow. There are several approaches which can be taken to eliminate early merging. You could update driver education materials or employ an outreach campaign, delivering widespread messages to publicize the benefits of late merging as identified in our paper. You could also reposition and re-word merge warning road signs to discourage early merging.

In addition, we recommend that you implement speed harmonization, which is the inclusion of dynamic speed limits through electronic road signs. By setting up a detector at the sign announcing the lane closure and another half a mile ahead, we can count how many cars pass by this distance in a given time, giving us a measured “congestion”. Based on varying degrees of congestion, we can manipulate the speed limit to optimize traffic flow near the lane closure. Our methods should be tested before widespread implementation; after all, this is a rather large change to our transportation systems. Perhaps you could start with select merge zones with a history of congestion. Based on preliminary field testing, the solution could be further refined and then promoted nationwide.

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