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Columns

Tom Koenninger April 22: Speed bumps, humps must be dumped

Wednesday, April 22 | 1:00 a.m.

BY TOM KOENNINGER

'Ding Dong! The witch is dead! Which old witch? The wicked witch! Ding Dong! the wicked witch is dead!"

Those lyrics from the Wizard of Oz express my sentiments about speed bumps in Vancouver, or anywhere else.

Street bumps, humps, or cushions come under the euphemistic term, "traffic calming devices." They are anything but "calming" for anyone not driving a horse and buggy. In most cases, they reduce the legal speed posted for a given street. And that is by no means the least of problems that come with their installation.

Street " humps" may not be dead, but there is no money to install more at present in the city of Vancouver.

Good. The bumps are no substitute for good policing. Nor are they a replacement for parental training of children to watch out for traffic.

For discussion purposes, Columbian reporter Scott Hewitt, writing April 8 of the lack of funding, included the Federal Highway Administration (FHA) definition: Speed bump — a jarring kind of barrier found in parking lots and school driveways; speed hump — the three to four-inch-high barrier on neighborhood streets, which is wider than a speed bump. Drivers can motor over them "without … too much of a jolt." A speed cushion is one lane wide with room around the edges to allow the wider wheelbase of a fire truck or bus to straddle them without loss of speed.

Consider, then, the inconsistency of Kauffman Avenue between 39th Street and Fourth Plain, which presents a spine-jarring ride at the posted 25 mph. Then, cross Fourth Plain, and encounter a bumpy, but more car-friendly speed hump system extending to Mill Plain.

If your neighborhood wants to buy its own street lumps, FHA reports prices: Speed hump, $1,500 each; speed cushion, $2,000 each; and speed tables (a gentler, wider barrier), $2,000 to $15,000.

They have been nuisances to vehicular traffic at any price since the "traffic calming" devices were introduced to a few U.S. cities from Europe in the 1970s. But that should not imply all Europeans are happy with them.

The Association of British Drivers (ABD) seems particularly incensed. Sample comments: "Speed humps are fundamentally ineffective. Depending upon the vehicles and hump design, going over a hump at a higher speed may cause less discomfort than a lower speed … Accelerating after negotiating a hump generates more pollution than if the hump hadn't been there."

ABD quoted research in Austria indicating cars driven one mile with six humps emitted 10 times more nitrogen oxide, three times more carbon monoxide and 25 percent more carbon dioxide "than vehicles maintaining a constant speed." ABD included a Jan. 12, 2008, Manchester Evening News story reporting a police van on an emergency call went out of control after hitting a speed bump and struck six people who escaped with "relatively minor injuries."

In Kitsap County above Bremerton, Hansville-area residents are looking for a response from the county commissioners to a petition bearing 632 signatures that calls for removal of Hansville-area speed bumps (Beep4Bumps.com).

Obviously, a constant speed cannot be maintained on a street with built-in bumps, which one critic called "inverted potholes." Those mounds of asphalt must be approached at 15-20 mph.

Then, there's the safety issue. FHA will report the bumps make roads safer. That aspect was challenged in 2006 in an article by Randal O'Toole (Thoreau Institute) and Kathleen Calongne (Independence Institute Center for The American Dream). It said that an Oakland, Calif. study reporting that the humps make streets safer for children, "actually shows nothing of the kind." The writers cited what they said were numerous flaws and declared: "In fact, the study's data can even be interpreted to mean that humps make streets more dangerous."

In this advanced electronic age of photo radar, red-light cameras and sobriety tests, why should anyone, least of all government, make our streets more difficult to drive?
 
Tom Koenninger is editor emeritus of The Columbian. His column of personal opinion appears on Wednesdays. Reach him at koenninger@comcast.net.



   
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