Truckee California, Atlanta Georgia and Winnipeg, Canada are a few of the latest cities to deploy radar speed signs in a big way. The growing acceptance of these traffic-calming displays is particularly noteworthy given the correlating decline in the popularity of speedbumps and radar speed cameras.

radar speed signs' increasing popularity

According to Sam Katz, the mayor of Winnipeg, their recent installation of seven solar-powered radar speed signs is “anything but a cash grab,” – one of the major concerns of Winnepeg citizens opposed to speed cameras. Studies show that radar speed signs are highly effective at slowing cars without being obtrusive or financially threatening (spelled t.i.c.k.e.t). Katz made it clear that none of the new displays will take pictures or be used to issue tickets.

In California, the city of Truckee took advantage of funding provided by the federal Safe Routes to School program to buy and install six flashing crosswalk signs and radar speed signs. The displays are being permanently mounted along a busy school route and are intended to be operational in time for the 2010-11 school year.

And then last year, residents of Wildwood, Georgia, a city just North of downtown Atlanta, used the data collected by a radar speed sign to convince local police that there was a major speeding problem around their local school zones. Surprising to many who analyzed follow up data, that the majority of speeders were local residents. This, however, coincides with findings of numerous traffic-calming studies and highlights one of the key reasons radar speed signs work so well. Most speeders are just distracted drivers. Radar speed signs are an unobtrusive way to redirect driver attention to their current driving conditions. And that doesn’t require photos or ticketing.

Speed bumps. Just say the word in a crowd and chances are you’ll soon start arguments that’ll make today’s town hall meetings seem sedate. While most everyone agrees speeding cars pose a real danger to school children and other pedestrians, there is a growing contingent of people who are fervently opposed to the use of speed bumps.

While protests against these axle-grinding obstructions continue to top the news throughout the U.K., stateside opposition has also begun to make headlines. From Los Angeles to Tampa Bay; Salt Lake City to Mesa Grande, newspaper articles highlight the fact that citizens across the country are up in arms about the disconcerting use of speed bumps by local governments looking to slow traffic.

There are now social network groups such as The Anti Speed Bump Club on Facebooks and organizations like The National Motorists Association and CRASH (Citizens Against Speed Humps), web sites such as No Speed Bumps.com, and bloggers such as Richard Layman in Washington D.C. and Cartype in Chicago. There are forums and essays, commentators and editorials – all who’ve had enough with this antiquated and obstructive means of slowing traffic.

Do speed bumps work? Sure, for the 1 to 3 feet of space that they take up on the road. But according to several government studies, drivers often try to make up the “lost time” or just relieve their frustrations over their use by speeding up between each bump.

Other reasons that a growing number of people are saying “no” to speed bumps in their neighborhood include:

1. They impede emergency vehicles
2. They simply divert traffic to streets without the obstructions
3. They increase traffic noise
4. They reduce fuel efficiency
5. They increase pollution
6. They ruin car suspension
7. They can be a hazard to wheelchairs and bicyclists

The troubling part of all this is that there are traffic-calming solutions that are more effective and less troublesome. In some cases, simple changes to street design can have a huge impact on slowing cars. Radar speed signs have also proven to be highly effective and highly rated by neighborhoods where they are employed.

Bottom line: speed bumps are on the outs – and should be. They represent an antiquated solution to a legitimate problem – one where alternative solutions offer more effective results without the considerable side effects.