Traffic calming devices DSTU 4123: road hills, mini-rings, safety islands, speed bumps - buy, low price in UAH, availability in Ukraine
Means of traffic calming
Until 2006, so-called lying policemen were prescribed as the main means of reducing speed in the state standards of Ukraine DSTU.
Group 1 - Creating obstacles on the roadway (road hills ...)
The first group includes:
Road hills, the length of which should now be from 2 meters. The same policemen lying down, only now very wide. We offer two versions of rubber road hills:
DP06 - the length of the horizontal platform is 2 m and corresponds to DSTU 4123:2020, and
rubber road hill DP04 - the length of the horizontal platform is 1 meter, the total length is 2 meters.
Raised pedestrian crossings. The idea is that when moving through a pedestrian crossing, the driver must now in any case reduce the speed of movement. We recommend placing road hills (wide lying policemen) 5-6 meters before the pedestrian crossing, so that drivers have time to reduce their speed "to".
Raised intersections. In this version, the reduction of speed before entering the intersection and after leaving it is regulated. Thus, the entire intersection is driven at a lower speed.
Group 2 – Changing the trajectory of movement (chickens, mini-rings)
The second group includes:
Bullies These are obstacles that are installed on the roadway in order for the driver to start making maneuvers instead of accelerating in a straight line. According to DSTU, along with chicanes, it is necessary to use road inserts according to DSTU 4036. Road chicanes are framed by side stone.
Mini-rings, we recommend rubber red road mini-rings MK3000 with a diameter of 3 meters.
Group 3 - changing the width of the carriageway (chokers, safety islands)
The third group includes:
Chokers are means for reducing the width of the carriageway.
Inserts along the axis - which can also be safety islands at the same time.
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Consider DSTU 4123:2005, which was in effect until 2020.
Speed bumps UA
a means of forced speed reduction, artificial road unevenness, the requirements for which are spelled out in 2006 in DSTU 4123: 2006. Since 2020, there are new ways to reduce speed and GOST 4123 has been renamed from "Device for forced reduction of the speed of road transport equipment on the streets and roads" to "Means of traffic calming". The new DSTU introduces such concepts as Shikan, Mini-rings, Chokers, road hills, elevated pedestrian crossings, elevated intersections, inserts along the axis of the road. The speed bumps in their usual form according to the new DSTU are replaced by road hills.
Kind of speed bumps
DSTU 4123: 2006 divides the elements of forced speed reduction by types and types. View A and View B are the main element and the side element of the speed bump, respectively. Type I, II, III - speed bumps are divided according to the size of the main section - its width and height. The first type includes narrow speed bumps, such as LP07, the third - the widest.
Speed bumps are composite and consist of two finite elements and central ones. The number of center pieces depends on the width of the carriageway.
Speed bumps, depending on the type, can reduce the speed of road transport to 30.20.10 km / h
During the installation of speed bumps, it is necessary to be guided by the requirements of DSTU 3090
How are speed bumps installed?
Each bump bump has mounting holes, with which the artificial road bump is anchored to the road surface. In order to correctly position the speed bump,
- you must first place the speed bump on the road surface as it should be installed
- then with a maker through the holes in the sections of the speed bumps, mark the locations for installation. Remove sections of speed bumps
- drill holes in the marked places, hammer dowels into the holes
- then the sections are returned to their places and through the speed bumps are fastened with screws into the dowels.
What are the requirements for speed bumps
According to DSTU 4123: 2006, device for forced speed reduction
- must have contrasting yellow-black colors, while the area of yellow must be at least 30% of the total area of the speed bump
- a speed bump is installed perpendicular to the carriageway so that it is impossible to bypass him
- the speed bump should be designed to drain water from the surface
- the coefficient of adhesion to the wheels must be at least 0.3
Which speed bump is better?
Rubber or polymer sand? How to choose the right speed bump? It all depends on the road surface on which the speed bump is planned to be installed. So, a rubber speed bump will calmly set on an uneven road surface and take its shape over time. It is best to install polymer sand bumps on a flat road surface, otherwise there is a risk that the section will not withstand a heavy load and burst. In the presence of conditions of a flat road surface initially, it is necessary to be guided by the effect that must be obtained from a speed bump. So, polymer speed bumps are available in only one version, rubber speed bumps are produced in several versions, which allows you to regulate different flow rates. The higher and at the same time the speed bump, as in the situation with LP07, the more it can reduce the speed of the car. In terms of service life, the presented polymer and rubber speed bumps have proven themselves equally well on the roads.
Means of traffic calming, mini-rings, rubber road bumps, safety islands, IDN High-quality recumbent police cars in stock and available to buy from a warehouse at a low price in UAH.