The transport of dangerous goods is an activity that demands a high level of responsibility and compliance with specific regulations. One of the key aspects in this context is respecting the speed limits established to guarantee road safety and reduce risks. In Spain and other European countries, these limits vary depending on the road and vehicle characteristics. Throughout this article, we will explain the details about the maximum speed of trucks transporting dangerous goods, along with tips on how to manage this type of transport efficiently.
What are dangerous goods?
Dangerous goods include materials that, because of their chemical or physical properties, pose significant health, environmental and safety risks. Common examples are fuels, corrosive chemicals, toxic gases and explosives. Their classification is regulated by the European Agreement concerning the Carriage of Dangerous Goods by Road (ADR), which divides these materials into classes such as flammable, corrosive and radioactive, among others.
This regulatory framework also details transport conditions, including speed limits and marking requirements for vehicles transporting them.
Current regulations on maximum speed in lorries.
In Spain, regulations set clear limits for trucks carrying dangerous goods, with the aim of minimising accidents and facilitating safe circulation. According to the Dirección General de Tráfico (DGT):
Motorways and dual carriageways: The limit is 90 km/h.
Conventional roads: A maximum of 80 km/h is allowed, provided that the road has a paved shoulder of at least 1.5 metres.
Urban areas: The limit is 50 km/h or even less, depending on local signs.
These restrictions not only aim to protect drivers, but also other road users and the environment.
Factors influencing the maximum speed
In addition to the regulations, there are additional factors that affect the speed limits for trucks carrying dangerous goods:
- Gross vehicle weight: Heavier trucks require lower limits to ensure stability and safe braking.
- Weather conditions: Rain, snow or fog reduce the permitted speed on dangerous stretches.
- The type of cargo: Some substances, such as highly reactive chemicals, may require extra precautions.
- Road conditions: Roads in poor condition or without adequate signage may impose additional restrictions.
Maximum speed on motorways and motorways
Motorways and dual carriageways are designed to allow higher speeds thanks to their optimised infrastructure. However, trucks carrying dangerous goods must be limited to 90 km/h, even if traffic conditions permit. This limit ensures better manoeuvrability in case of emergencies and reduces the possibility of serious accidents.
Maximum speed on secondary roads
Secondary roads present greater challenges due to their design. For this reason, the limit for trucks carrying dangerous goods on these roads is 80 km/h. This lower limit allows safer manoeuvring in tight curves, areas with poor visibility and roads without a hard shoulder.
International land transport and speed limits
International road transport adds an additional layer of complexity when moving dangerous goods. In this context, companies must comply with local and ADR regulations for each country. Standardisation in Europe facilitates these operations, but it is essential to be aware of the specificities of each region. If you are looking to optimise your operations, we recommend this resource on international road transport.
Technologies to help comply with speed regulations
Many transport companies have incorporated technological tools to ensure that their vehicles comply with speed limits. Systems such as digital tachographs, GPS with real-time alerts and automatic speed monitors are becoming increasingly common. These solutions allow drivers to focus on safe driving and help companies avoid penalties.
Fines and penalties for exceeding limits
Failure to comply with speed limits can lead to significant fines, suspension of licences and, in serious cases, withdrawal of permits to operate. In addition, in the event of an accident, businesses can face wider legal liabilities.
How speed limits relate to full loads
Opting for full load transport is ideal when large volumes of dangerous goods need to be moved. In these cases, respecting speed limits is even more critical, as a fully loaded truck can be more difficult to control in unforeseen situations.
Recommendations for transporters of dangerous goods
- Plan routes strategically, avoiding high-risk areas.
- Conduct regular vehicle inspections.
- Use speed monitoring systems to ensure compliance.
- Trains drivers in emergency procedures.
- Verify that vehicles comply with mandatory ADR markings.
Conclusion
Complying with speed limits for the transport of dangerous goods is not only a legal obligation, but also a crucial measure to ensure safety on the roads. Companies transporting this type of material must keep up to date with local and international regulations, using modern technologies and strategic routing plans to minimise risks. If you want to learn more about logistics and related regulations, we recommend this article on transporting dangerous goods by road.
These practices ensure efficient, safe and responsible transport.