Posted by proforma on February 23, 2012 | No Comments
Can driving more slowly actually get you to your destination faster? Yes, and there’s evidence to prove it, as detailed in this article in Slate. Complicating matters further, the more deviation in speed among vehicles traveling the highway, the greater the chance of accidents. If you’re thinking that everyone needs to drive faster to reduce bottlenecks, you will be “dead wrong.”
The first concept to address is “rolling speed harmonization,” best illustrated by this example: on Colorado’s I-70 highway, patrol cars — riding in tandem with lights on — slow the average traffic speed down to 55, from 70 mph. This reduces the speed differential among vehicles and increases volume throughput. Most important, it reduces the braking and lane changing that lead to accidents.
Now, let’s address going slower, getting there faster. This is best exemplified by the “rice and funnel” effect demonstrated by former Washington Dept. of Transportation Commissioner Doug McDonald. Cars approaching a traffic jam tend to slow down traffic as it accumulates in front of the bottleneck; cars approaching the bottleneck more slowly actually progress past it more quickly and smoothly.
See the video, lower left on this page, the demonstration by MacDonald demonstrating the rice and funnel concept.
A reminder to employees to safety — their own and their families’ — is timely. A recent report by the Governors Highway Safety Association indicates the number of deaths of 16-17 year old passengers rose during the first half of 2011 over the same period the previous year.