Gateway TSP Services

Road Safety Research

transport safety research

Gateway TSP has experience in undertaking transport safety research projects across a wide range of areas, including the effect of removing street lighting and the benefits provided by Local Safety Schemes. In particular, Gateway TSP has been involved in consultation with Transport for London (TfL) conncerning the Direct Vision Standard for HGVs. The Direct Vision Standard for heavy goods vehicles (HGVs) assesses and rates how much a HGV driver can see directly from their cab in relation to other road users.

Cyclists killed and seriously injured at the nearside of trucks turning left have historically been the highest profile collisions related to HGVs in low speed manoeuvres. However, the research has identified that the area of greatest risk extends across the full width of the front of the vehicle and 5 metres back down the nearside of the vehicle.

Understanding how much HGV drivers can see from their cab is essential in reducing the risk of collisions. Greater awareness of an HGV driver's direct vision will also lead to an increase in the demand and supply of safer vehicles. Blind spots around HGVs have long been identified as a potentially significant contributor to the cause of serious collisions with pedestrians and cyclists. A range of up to six mirrors and other field of view aids are already required to improve the view of these areas. However, these measures rely on the driver looking at the correct mirror or vision aid at the right time to be successful and there are concerns that further increases in the number of devices would overload the driver during critical manoeuvres.

Seeing a pedestrian or cyclist directly through the windows of the vehicle is likely to have several advantages over indirect view through mirrors or camera monitors. The image is full size, free from distortions, substantial movement may be visible, which would help attract the attention of the driver, and direct eye contact is possible between the two parties.