Aluminium Trucks Use Low Gear Sign | Steep Descents

Traffic controllers and road maintenance crews use this Trucks Use Low Gear sign to alert heavy vehicle operators of upcoming steep descents. It is a specialised addition to a suite of road signs deployed in mountainous terrain, rural highways, or industrial access ramps where brake fade and vehicle runaway risks are high. Placing these signs well in advance of a grade change ensures drivers have ample time to adjust their transmission.

By providing a clear, high-contrast visual warning, the sign helps drivers shift into a lower gear before they begin the descent. This reduces the reliance on service brakes, which prevents overheating and reduces the risk of brake failure on long slopes. The Class 1 reflective surface ensures the message remains legible during night operations or in poor weather conditions, such as heavy rain or fog, where visibility is compromised. This protects both the driver and other road users by encouraging controlled speeds and stable vehicle handling through the most dangerous sections of the route.

This sign is constructed from aluminium for long-term durability against the elements. It measures 950x750mm and features a Class 1 reflective finish for consistent performance across various lighting conditions.

Features

• 950x750mm dimensions
• Constructed from aluminium
• Class 1 reflective finish

Specifications