Road speed bumps such as speed bumps Baltimore are devices placed on the roadway to encourage drivers to slow down as they pass. They reinforce the security of the installation area when the possible presence of speed cameras and traffic signs is not sufficient to regulate the speed of vehicle traffic.

In some countries for instance, the installation of a speed bump on the public highway must comply with a set of standards and regulations, so that these speed bumps do not become an obstacle to traffic. A poorly placed, poorly maintained, too steep, too wide or too high retarder could seriously damage passing vehicles and possibly create a risk of accident. Located on private roads, speed bumps are not subject to any standard or recommendation: specific dimensions are recommended so that they do not constitute an obstacle to road safety.

There are five models of speed bumps for private roads and two models of speed bumps for public roads. These speed bumps are designed as trapeze, speed bumps, or plateaus. Each shape impacts the passage of a vehicle over the speed bump differently.

Speed ​​bumps, intended for private installation, are spread over the width of the roadway. They raise the roadway over a very small length, their height is enough to encourage drivers to slow down. The 5-centimeter-high speed bump will reduce traffic speed to 20 km/h, while the 7-centimeter-high speed bump will reduce it further to a maximum of 10 km/h.

The trapezoidal type speed bumps, also intended for private installation, are spread out in width and in length on the roadway. They feature two slopes and a raised rectangular top. These speed bumps are available in two lengths, 60 centimeters, and 90 centimeters, allowing a smoother passage of the vehicle.

The variety of types of speed bumps allows companies and local authorities to obtain the equipment adapted to the configuration of the area to be developed, while respecting the standards and regulations related to the installation of a speed bump. A roadway-raising device ensures road safety by regulating traffic in 30 zones and other accident-prone areas.