Gabarit refers to the signs or measurements we frequently see today on many tunnels or overpasses, which determine the maximum width and height of vehicles. Providing a safer trip in traffic, these signs represent a specific limitation. Let's examine together what the gabarit limitation represents in traffic.
How is the Gabarit Calculated?
Since gabarit calculation is a highly important process, it is generally calculated by the municipality. In fact, for almost every subject related to calculations, the commands determined by the municipalities are taken into consideration.
When calculating, municipalities take into account the footprint of the land, the land area, and the height of comparable structures. To give an example in this regard, the product of the land value and the precedent value corresponds to the total construction area in square meters. The roof allowance is also deducted from the gabarit initially calculated for construction. How much area can be allocated for construction per floor can be calculated by dividing the total construction area by the number of floors.
What is the Gabarit Limitation?
The determination of gabarit dimensions is a situation based on limiting the width and height that must be complied with by the vehicles traveling on designated roads. In this sense, gabarit limitations are restrictions that allow or limit vehicles passing through bridges or overpasses to pass without causing any damage to these structures.
With the gabarit sign, the width, length, or height of vehicles passing through structures is limited. Therefore, it can be said designed to be highly useful, particularly to avoid physical contact applied by vehicles to structures. These limitation signs, used to prevent potential accidents and ensure traffic integrity, are positioned within the driver's line of sight.
Particularly today, frequent cargo transportation processes cause the use of vehicles that are much larger than normal vehicles. For this reason, it is especially important that vehicles such as trucks or semis involved in freight transport do not disrupt traffic flow or damage structures. Additionally, since signs might be damaged due to bad weather conditions, periodic maintenance and replacements are carried out by municipalities.
How Does Gabarit Limit Vehicles?
The aspects covered by the gabarit limitation and what needs to be considered particularly can be listed as follows;
• Maximum width of vehicles
• Maximum height of vehicles
• Maximum wheelbase
These three guidelines, which determine the limitation, also contribute to vehicles traveling safer and smoother in traffic. These limitations, carefully determined to ensure vehicle safety, appear before drivers particularly on roads where a certain width or height must not be exceeded. Vehicles that could create this dangerous situation, such as trucks or semis, can have a safer journey by following the signs.
What Does the Gabarit Regulation Include?
The gabarit regulation includes some important rules to ensure the safe passage of vehicles through designated structures. According to the regulation, the points to be considered can be listed as follows;
• Maximum weight
• Maximum width
• Maximum length
• Maximum axle load
• Maximum height
• Dimension measurement tolerance
• Weighing tolerance
• Carrying capacity limit
What Are Gabarit Signs?
Gabarit signs are plaques on various structures like bridges and overpasses that indicate the limitations determining the vehicles that can use these roads. It is highly important to pay attention to the signs that have a guiding feature for all vehicles using the existing road during the journey. Therefore, these signs ensure that relatively larger vehicles are also guided to these roads.
These can appear in different ways according to the limitations made on existing roads. Vehicles moving according to the limits determined within the restrictions must also check the route in advance. It is ensured that roads with limitations are used accordingly.
The places where limitations are applied within the scope of gabarit signs may vary depending on the characteristics and structure of the road. For example, there may be limitations in areas with sharp curves, and the same applies to tunnels or overpasses where maximum heights are determined.
How Does Gabarit Affect the Carrying Capacity of Vehicles?
Particularly vehicles engaged in freight transport must take into account the determined gabarit limitation to proceed on a specific route. In this way, it becomes easier to make route planning according to vehicles. If there are multiple restrictions on the route followed by vehicles with high carrying capacity, the calculation is made by taking the lowest of these into account. In this way, almost all vehicles can experience a safe journey in traffic without facing problems.
How is Gabarit Control Carried Out? Which Methods are Used?
Complying with gabarit signs/plaques has an important place in ensuring safety in vehicle traffic. Therefore, by checking the gabarit on vehicles, it can be determined whether the rules are followed. With the development of technology, the accuracy of monitoring mechanisms has increased. This contributed to the increase of methods that can be used during inspection. The infringement systems used can determine whether vehicle users comply with the rules by monitoring the height and width of transport vehicles. Infringement systems are generally used in underpasses, tunnel entrances, or on bridges.
