Engineers find a new approach to solve traffic congestion and pedestrian delaysThis article was posted as an April Fool's joke.
Drivers and pedestrians alike often have to face unacceptable levels of delay when they drive or walk around roads in the state of Maryland and Montgomery County. Engineers recently announced new approaches that they believe will make these problems disappear.
The Maryland State Highway Administration (SHA) is developing a new Pedestrian Level of Service standard to ensure that pedestrian delays are not unacceptably long, while the Montgomery County Department of Transportation (MCDOT) will make traffic changes that ensure smoother flow of traffic.
On state highways, pedestrians sometimes have to cross three legs of an intersection, as SHA often does not stripe a crosswalk on one leg. Under federal guidelines, walk signals must last long enough for those on foot to traverse the crosswalk. But the crosswalks need not go straight to a pedestrian's destination, so the state and localities often remove crosswalks so avoid having a long walk signal.
The new Pedestrian Level of Service (PLOS) will address this. It will work similarly to the motorist Level of Service, which grades intersections based on how long people have to wait to cross. Vehicular LOS defines an intersection as "failing" if, on average, a driver has to wait 90 seconds or more to get through the intersection.
Since a pedestrian trying to go straight across the leg where the crosswalk doesn't exist has to cross the other 3 legs of the intersection (waiting for the signal each time), they often encounter more than 90 seconds of delay, so SHA will instead define a failing intersection as one where a pedestiran has to wait 3600 seconds or more to cross.
A statewide analysis of intersections under these new standards to determine which intersections need to be upgraded didn't find any problem spots. Deputy Administrator Ida Driven is pleased. "Clearly, this study shows that Maryland is doing well with pedestrian safety. Over the past 15 years, SHA has spent tens of dollars to make sure that active transportation users can get around safely."
A representative of AAA, Hugh Jestkarr, lauded the change. "Clearly the study shows that pedestrians benefit from roadway improvement projects. It shows that drivers can have fast roads and pedestrians can still get what the government defines as adequate."
The State Highway Administration hopes the new standards and the study will help determine where to spend money. As has been done in many areas, if the PLOS does show a poor grade, state officials will simply remove the crosswalk to ensure that the intersection continues to meet the standards.
Meanwhile, MCDOT has been conducting a detailed analysis of places where the vehicular Level of Service is too low. The test measures how much time it takes cars to get through each intersection, but the county has faced increasing difficulties in meeting this test.
County rules, in fact, block construction where roads have a "Level of Service" that is too low. This test measures how much time it takes cars to get through each intersection.
A particular problem is left turns, which slow down the performance of each intersection. Therefore, beginning next year, left turns will be banned throughout the county.
"When turning cars aren't in the way," explained chief traffic engineer Ample Wandering, "drivers get through intersections faster." Current LOS defines an intersection with an excessively backed-up left turn lane as "failing," but the same intersection passes when left turns are forbidden.
LOS rules prescribe how fast cars must go through intersections, noted deputy transportation director Edsel Gasoline, but they say nothing about how quickly drivers get where they are actually going. "Our drivers will finally be free from the curse of failing intersections," boasted Gasoline.
If any intersections still have Level of Service F without left turns, the county will ban right turns there too.
AAA's Jestkarr cheered the plan. "Drivers," she said, "will at last have the fast-moving roads we crave."
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