The issue of permissible and specified weights for commercial and non-commercial trucks operating on Saudi transport routes has long been a major concern for regulatory bodies. This is due to its utmost importance and direct impact on the safety and security of the highway network and the quality of infrastructure, which Saudi Arabia is diligently striving to develop further and better than anywhere else in the world. This effort aims to contribute to ensuring the safety of road users, in addition to the significant economic effects on national and local economic activity. Large trucks are the backbone of commercial and logistical transport in Saudi Arabia and globally, with both the private and public sectors relying entirely on them for the movement of goods and essential materials between the Kingdom and its neighbors, as well as for commercial traffic between Saudi cities, which are connected by paved asphalt roads equipped for such commercial tasks that boost the national economy and protect citizens from disruption to the supply of essential living materials.
Following the immense urban expansion witnessed in Saudi Arabia in recent years, it became essential to address the urgent need to develop highway network infrastructure. This was achieved through strong and robust foundations and the use of high-quality materials. However, improper and uncontrolled use, or overloading trucks with excessive weights beyond the asphalt roads' capacity, directly leads to the erosion of asphalt and road-paving materials, as well as the appearance of cracks, potholes, and uneven surfaces, resulting from high loads and elevated temperatures. For these reasons, specialized authorities have established laws and limits for the load and speed of commercial trucks and public transport buses, to avoid frequent road maintenance and prevent horrific accidents caused by loss of control over an excessively loaded heavy truck. Furthermore, damage to the road itself can cause other, larger, and worse accidents. For these multiple reasons, Saudi Arabia has put in place rules and regulations as part of a comprehensive and precise system of laws that govern permissible truck weights and overall dimensions, imposing strict penalties on violators with a single objective: to maintain road safety and protect citizens from accidents and hazardous situations.
The regulations and laws that define the maximum load, truck weights, and dimensions on the road are a result of the urban and population growth witnessed in Saudi Arabia.
Developments in Land Transport Systems in Saudi Arabia
The urgent need to develop a public road network connecting cities and villages began with the establishment of Saudi Arabia. With the development of road networks and the commercial and public land transport sector, advanced and modern highway networks were built based on high-quality and efficient international standards and systems to facilitate movement. These updates and developments served economic, social, and cultural aspects in the regions they connected. With this significant expansion and rapid development, an urgent need arose to establish updated regulations and controls to keep pace with the substantial increase in truck numbers and the diversity of their various loads.
These systems and controls were derived from practical standards and advanced engineering studies that ensure balanced load distribution across the various axles of trucks, so that heavy loads do not damage the asphalt layers, which are naturally flexible and expandable. This provided protection for the infrastructure and highway surfaces. Instructions were more precise regarding connecting bridges and vital facility roads, which require specific speeds and heights that must be adhered to. The systems and controls were meticulously reviewed to keep pace with changing events and developments, in addition to the specialized bodies and authorities that review global and local developments and address them through different regulatory approaches. Among the most exemplary achievements was the organization of Hajj routes and the provision of transport buses, metro, and various logistical means, which had a significant impact on the successful management of the Grand Hajj rituals. These efforts are steps undertaken by Saudi Arabia, which bore the responsibility and set an excellent example of organization, commitment, and sacrifice.
The General Authority for Roads has affirmed on more than one occasion that adherence to legal truck weights is not merely a precautionary regulatory measure, but a strategic necessity to preserve one of the most important national assets: commercial link roads and the public road network. These are considered among the most significant investments through which Saudi Arabia aims to achieve advanced global rankings in quality and safety indicators. These regulations also work to provide high protection for the massive investments poured into infrastructure projects, ensuring their sustainability for future generations with the required quality.
The continuous developments over time are but a series of government efforts dedicated to serving the citizens of this ancient Kingdom, which has built a towering edifice of successes ensuring excellence for future generations.
Relationship Between Number of Axles and Maximum Permissible Weights
The process of regulating permissible truck weights begins according to the number of axles allocated to the truck. Two-axle trucks are allowed a maximum load of 21 tons, while the permissible load gradually increases with the number of axles: three-axle trucks to 34 tons, continuing to 42 tons for four axles, and 45 tons for five-axle trucks. This progression is based on detailed studies conducted by the competent authorities, depending on the weight allocated to each axle and the road's capacity to handle these specific weights. This is, of course, a simple physical principle: the greater the weight-bearing area, the less pressure on the asphalt. Thus, trucks with many axles exert less pressure on the asphalt. Nevertheless, regulations in Saudi Arabia have separately specified maximum weights for each axle, where the weight on a single steered axle must not exceed 8 tons, on a dual-wheel axle 10 tons, on a single non-steered axle 13 tons, and at the end of any non-steered axle 6.5 tons.
These engineering challenges are addressed by distributing the forces acting on the road, reducing the likelihood of structural damage to pavement layers or equipped bridges. Adherence to these weights in a systematic manner also effectively contributes to extending the lifespan of the local road network and reduces the costs of periodic maintenance for these roads. This means that roads will be more active in their commercial movement and capable of continuous operation without significant interruption. Stopping for maintenance means a partial disruption of commercial traffic, which implies a halt in economic activity and a slowdown in important logistical operations. For this reason, public weigh stations on main roads are considered periodic inspection points for trucks, where it is ensured that the load complies with the legal weights stipulated in Saudi regulations, and any excesses or violations are recorded electronically and instantly.
The General Authority for Roads has emphasized the importance of adhering to permissible weights. Otherwise, violators of these regulations and rules will be fined SAR 100,000. This severe penalty aims to curb violations that harm the infrastructure of the transport network throughout Saudi Arabia. These regulations align with Saudi Arabia's pursuit of achieving safety on highways and providing means to accelerate logistical transport operations within the Kingdom.
Saudi Arabia imposes a SAR 100,000 fine on anyone exceeding the permissible weights for trailer trucks operating within Saudi territory.
Importance of Even Load Distribution on Axles
Matters do not stop at the legal determination of total weights; they extend to regulating the even distribution of weights and loads across all axles. This ensures full load distribution on the road in a way that prevents any axle from being under excessive pressure. Regulatory provisions stipulate that exceeding the permissible weight on any axle incurs a financial fine, specifically for an increase of 200 kilograms over the legal weight, with the fine reaching SAR 2,000 for each violating axle. These regulatory measures directly aim to make roads safer, as improper balance leads to significant overloading of tire axles, causing them to wear out faster than usual, and increasing asphalt road deterioration, which means a high increase in accident occurrences.
As a result of an unbalanced and uneven load distribution on a truck, concentrated on one axle over others, pressure is exerted on certain parts of the road, causing cracks and indentations in the asphalt. This can lead to the partial collapse or sudden subsidence of the road surface, especially in areas with heavy and continuous truck traffic. Furthermore, excessive load on truck axles negatively impacts the truck's overall performance on the road, causing general delays in the goods transport process, which requires high efficiency and continuous operation without interruptions that disrupt the logistical process expected from the truck and its driver. Moreover, prolonged overloading and stress on the truck will lead to severe tire wear and serious failures in the suspension system. Since a truck's parts are generally interconnected, a failure in one part means a cascade of serious problems and malfunctions that excessively increase maintenance costs.
Modern engineering studies also confirm that balanced load distribution among axles effectively contributes to improving truck stability while driving on the road, significantly reducing the risks of rollovers or damage to loaded goods during sharp turns, severe maneuvers, or driving on slopes and difficult, winding terrains. For this reason, precise weighing operations for each axle are conducted at public and private weigh stations, which brings us back to emphasizing the importance of arranging cargo inside the truck according to pre-prepared technical guidelines, whose implementation is entrusted to the truck driver or, in some cases, loading supervisors.
Legal Size and Dimensions for Commercial Trucks
Regarding the legal dimensions for heavy and medium trucks, the General Authority for Roads has set the maximum truck length not to exceed 23 meters, the width not to exceed 2.6 meters, and the maximum height to be 4.8 meters, with a fine of SAR 1,000 imposed on anyone who exceeds these dimensions and standards. The primary goal of setting these specific standards and dimensions is to provide a high level of safety and security on the general commercial road network, in addition to ensuring safe passage through tunnels and bridges and facilitating traffic flow at intersections and during maneuvers on commercial highways or within congested cities. The regulation also included prohibiting oversized trucks from sharing the road with smaller vehicles to prevent accidents or inconvenience during driving. Exceeding legal dimensions puts you at risk, as many bridges have low clearances, meaning a high probability of collision, or exposure to low traffic signals, overhead power lines, or other infrastructure-related issues in Saudi Arabia. These dimensions also consider safety requirements during loading, unloading, and sorting goods, allowing sufficient space for workers to move inside the truck and load or unload normally, without exposing workers or equipment to the risks of injury or falling cargo.
On the other hand, dimensions are measured using modern technologies and specialized devices for length, width, and height, which facilitates the electronic and immediate recording of violations. This is a result of strict road monitoring and a strong commitment to ensuring road safety. These dimensions are mandatory for drivers in all circumstances, even when transporting exceptional loads, which require submitting a request for special permits in exceptional cases, along with providing additional safety measures such as warning signs or security escorts when necessary. The General Authority for Roads emphasizes that adherence to legal dimensions directly contributes to improving traffic flow on commercial roads in Saudi Arabia, significantly reducing the level of risk on highways, with a noticeable decrease in the number of accidents resulting from collisions or friction between large and small vehicles.
The size and dimensions of trucks are not merely a superficial, valueless detail; they are a crucial factor and a cause of increased accidents and collisions. Regulating sizes and dimensions means we are moving towards a safer and more stable highway network.
Fines and Financial Penalties System for Violators
Regulatory authorities have established a system of escalating fines based on the degree of weight overload. This measure has practical objectives, primarily to deter violators and ensure compliance with the regulations stipulated in the bylaws. Accordingly, fines start at 200 Saudi Riyals for every 100 kilograms of excess weight beyond the truck's maximum load, applicable when the overload is between 200 and 2000 kilograms. Fines increase progressively according to the regulations available on the official websites of the relevant authorities, which all drivers and logistics fleet owners must review and disseminate to all sector employees. Additionally, fines have been imposed for bypassing weight inspection stations or dimension and size inspection sites, which is considered a violation incurring a fine of 5,000 Saudi Riyals. Fines generally double for repeat offenses, with a cap not exceeding 100,000 Saudi Riyals. These fines are strictly enforced on all trucks within the Kingdom of Saudi Arabia, whether local or foreign. The concerned authorities require drivers to settle violations before being allowed to enter Saudi Arabia or continue driving on highways. The competent authorities and relevant bodies affirm that the purpose of these fines is not revenue generation but rather to deter violators and protect Saudi Arabia's road network, while ensuring the safety of highway users and providing a safe environment to manage traffic situations and prevent accidents. Furthermore, the Kingdom of Saudi Arabia bears the maintenance costs for infrastructure damage resulting from accidents. Therefore, diligent efforts have been made to reduce maintenance costs and enhance the safety of public road users.
Procedures to Prevent Non-Compliant Trucks from Driving on the Road
The relevant authorities have regulated bylaws to strictly prevent trucks exceeding the permissible weight by a significant margin from continuing on Saudi Arabia's road network. The regulations stipulate that a truck is prohibited from proceeding if its total weight exceeds the permissible limit by 2500 kilograms, or if the weight on a single axle exceeds its specified limit by 500 kilograms. This is in addition to the fine imposed on the violator; meaning the fine is always applicable, but excessively overweight vehicles must be prevented from driving due to their severe danger. Conversely, vehicles with lesser weight violations may proceed with certain conditions and speed restrictions. As mentioned earlier, a non-compliant truck is impounded at the weight and dimension measurement station until the load is redistributed evenly or the excess weight is reduced to within the maximum permissible limit on Saudi roads. These procedures are enforced by security agencies responsible for protecting and regulating the road network and are subject to strict oversight by inspection teams from the General Authority for Roads. All violations are documented electronically, and driver and truck data are recorded in the central system.
Drivers are required to settle weight and dimension-related violations before being allowed to enter the Kingdom of Saudi Arabia. This reflects the extreme seriousness with which the competent authorities enforce regulations on all incoming and outgoing trucks without exception, and equally on both foreign and Saudi drivers.
Awareness, Education, and Shared Responsibility
The Kingdom of Saudi Arabia has diligently worked to develop awareness and educational initiatives for drivers, logistics fleet owners, and those interested in the field. Darbk Tires has been a shining star in this area, which has motivated us to work even harder to promote awareness and disseminate the knowledge needed by those working in the transportation and trucking sector. This is in addition to significant contributions in providing the highest quality tires specifically designed for the Saudi Arabian environment. Darbk Tires has consistently focused on selecting designs suitable for various environments and diverse terrains, while enhancing resistance to the high temperatures prevalent in the Arabian Gulf regions and Saudi Arabia. These high temperatures pose a significant risk to trucks and tires, being a primary cause of tire blowouts and accelerated wear. Darbk Tires continues its earnest efforts and ambitious aspirations to be a supporter and helping hand in achieving Saudi Arabia's Vision 2030 and supporting the endeavors of His Majesty King Salman bin Abdulaziz Al Saud and His Royal Highness Crown Prince Mohammed bin Salman.
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