What is DVS/PSS?
What is DVS (Direct Vision Standard) and PSS (Progressive Safe Systems)?
The Direct Vision Standard (DVS) and Progressive Safe Systems (PSS) are initiatives implemented by Transport for London (TFL) to improve the safety of heavy goods vehicles (HGVs) on London's roads. These measures aim to reduce the number of collisions and fatalities involving HGVs by enhancing the visibility and safety features of these vehicles.
Direct Vision Standard (DVS)
The Direct Vision Standard (DVS) focuses on improving the direct vision of HGV drivers from their cabs. It rates the level of direct vision a driver has from their HGV by using a star rating system ranging from 0 to 5 stars. This rating is determined based on the visibility from the cab, considering factors such as the positioning and size of windows, mirrors, and other vehicle design features.
The DVS requires all HGVs over 12 tonnes to obtain a Safety Permit to operate on London's roads. The Safety Permit is issued based on the star rating of the vehicle, with a minimum requirement of a one-star rating. HGVs with a zero-star rating are not allowed to operate in Greater London.
By implementing the DVS, TfL aims to ensure that HGV drivers have better visibility of vulnerable road users, such as pedestrians and cyclists, thereby reducing the risk of accidents and improving overall road safety.
Progressive Safe Systems (PSS)
In addition to the DVS, TfL encourages the use of Progressive Safe Systems (PSS) to further enhance the safety of HGVs. PSS refers to a range of additional safety features and technologies that can be installed on HGVs to improve visibility and reduce blind spots.
Some examples of PSS include:
1. AI Cameras: Installing Ai cameras at strategic locations around the HGV to provide the driver with a comprehensive view of the vehicle's surroundings.
2. Radar Sensors: Using Radars to detect the presence of pedestrians, cyclists, or other vehicles in the HGV's blind spots and providing audible or visual warnings to the driver.
3. Sideguards: Fitting sideguards to HGVs to prevent vulnerable road users from being dragged under the vehicle in the event of a collision.
4. Warning signage: Displaying warning signage on HGVs to alert other road users about the potential blind spots and the need for caution.
By promoting the adoption of PSS, TFL aims to ensure that HGVs are equipped with the necessary safety features to minimise the risk of accidents and protect vulnerable road users.
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Please note that the content provided is a summary of the information related to DVS and PSS from the Transport for London website. It is always recommended to refer to the official TfL website for the most up-to-date and detailed information on these initiatives.