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DVS 'Progressive Safe System' 2024

As part of the Mayor of London’s Vision Zero plan to eliminate all deaths and serious injuries on London’s transport network by 2041, TFL have released an enhancement to the current Direct Vision Standard (DVS) ‘Safe System’ with the introduction of the ‘ProgressiveSafe System’ (PSS) from October 2024.

From 28 October 2024 HGVs over 12T must meet a minimum standard of three-star rating, where vehicles do not meet this minimum standard operators are required to implement a series of vehicle safety measures, which are designed to reduce the risks that HGVs present to vulnerable road users (VRU). Vehicles must then obtain a safety permit before entering and operating in Greater London.




An HGVs DVS star rating is based on how much the driver can see directly through the vehicle’s cab windows of the area around the vehicle where collisions are most likely to take place.


The new PSS will come into force from 28th October 2024, and will apply to all vehicles that have a two-star rating or lower.

0, 1 & 2-star permits granted before 24 June 2024 are valid until midnight on 27 October 2024, by when these permit holders will need to have applied for a new safety permit to demonstrate that their vehicle meets the new PSS requirements to operate in London.

We will begin to accept applications under the new requirements from 24 June 2024 for vehicles that will need a permit with a PSS condition.

These permits will be valid until midnight on 28 October 2030. Existing permits (with a Safe System condition) for these vehicles will remain valid until their stated expiry date, at midnight on 27 October 2024.

For more information and guidance please visit TfL website



1. Moving Off Information Systems (MOIS)

Vehicles must have a Moving Off Information Systems (MOIS) that detects pedestrians or cyclists entering the blind spot area in front of the vehicle, when the vehicle is stationary with the brakes applied. This signal must be escalated to a collision warning if the driver begins to prepare the vehicle to move off from a resting position. Front sensor systems must be ‘active’ and able to react to the presence of Vulnerable Road Users (VRU). They must not provide false alarms.

The system must provide a visual signal to show that it has detected a VRU in the detection area, as specified in the technical specifications. If the vehicle then moves off with the VRU detected, then a collision becomes imminent, and an audible alarm signal should sound.

For more information on BSIS please visit TfL website.

2. Blind Spot Information System (BSIS)

All vehicles must have a Blind Spot Information System (BSIS). The systems should only provide the information signal to the driver in response to the presence of a Vulnerable Road User (VRU) and not a car or a piece of roadside furniture (unless a collision with those items was imminent). The detection range must be 2m in height, 2.2m to the side, and 9m to the back. The system must be active at all vehicle speeds between 0 km/h and 30 km/h and able to issue information signals and warnings irrespective of the activation status of the direction indicators.

For more information on BSIS please visit TfL website.

3. Camera Monitoring Systems (CMS)

To completely eliminate the remaining vehicle Blind Spot at the nearside, a Camera Monitoring System must be fitted, regardless of whether mirrors are fitted. Incab monitors must be positioned close to a window edge or existing mirror location (without obscuring the view through the window) to minimise the time the driver needs to take their eyes off the road to see the monitor. A Mirror Replacement Camera System may also be used as an alternative to fitting Class V and VI mirrors. Monitors only intended to show blind spots related to low speed manoeuvring, such as mirror replacement cameras, may switch off at speeds above 20mph. An additional camera monitoring system does not need to be fitted where one already exists in the vehicle, such as to replace mirrors, and the same safety benefits are achieved.

4. Audible Warnings

Vehicles must be fitted with Audible Warning equipment to make nearby pedestrians, cyclists and other road users aware that the vehicle intends to carry out a turning manoeuvre. Operators should consider fitting an Audible Warning System that combines spoken warnings and white noise. It is recommended that Audible Warning Devices require minimal driver intervention. The device should have a manual on/off switch for use between the hours of 23:30 and 07:00.

For left-hand drive vehicles, the Audible Vehicle Manoeuvring Warning must be fitted to warn people walking and cycling when a vehicle is turning right.

5. Warning Signage

Warning Signage must be displayed on the rear of the Rigid Vehicle & any trailer unit in use, not the front tractor unit.

PARKSAFE GROUP SOLUTIONS: DVS ‘Progressive Safe System’ 2024 Kit

REGULATION 151 & 159


Vehicles already approved to UNECE Regulation 151 and 159 are considered to have BSIS and MOIS requirements. For this reason, Parksafe Group have created these specific kits to guarantee compliance for fleet operators.



1080p Ai Pedestrian Detection Cameras

This Pedestrian & Vehicle Detecting Camera detects vulnerable road users like; pedestrians, cyclists and vehicles at the front, side and rear of the vehicle, and provide real-time visual and audio alarm to remind drivers of potential dangers.

Quad Screen FHD Monitor

Our Quad HD Monitor brings FHD resolution and 4 Channel Input connectivity together into our range. Multiple viewing modes and trigger selections combined with a user friendly interface makes this a perfect high specification addition.

Audible Left Turn Alarm

The Left/Right Turn Alarm is fitted to LCV and HGV vehicles to alert pedestrians and cyclists when the vehicle is turning.

Internal Audible "Pedestrian Detection" Alarm

Our Reduced Volume ‘Pedestrian Detect’ Alarm is mainly designed to be housed inside the cab of the vehicle and will provide audible warnings when pedestrians are detected at a reduced volume.

The dB level can also be raised via a trigger wire.

Speed & Indicator Module

Indicator & Speed Pulse Module Used for: Turn left alarms, Side detection systems, Cameras and DVR trigger input.

4-Minute Timer Delay Switch for Panel

4 Minute Timer Cut Out Relay.

Blind Spot Sticker

A3 sized Blind Spot Stickers available in either portrait or landscape versions.

Where in London is the DVS Enforceable?

The DVS map below outlines the area of London where the DVS regulation is currently in force and where permits are compulsory.

Don’t forget this will apply to ALL vehicles weighing more than 12 tonnes, whether they are from the UK or traveling into London from overseas.



Please complete the form below with your registration and VIN number for your trucks over 12T and we will contact the manufacturer on your behalf*

Once we have your DVS star rating, if any further action is required, we can advise you with how to comply, including helping to fit any devices required.

From October 2024, all vehicles’ rates 0, 1 and 2 stars will be required to comply with the DVS Progressive Safe System (PSS). Final specifications for the DVS PSS is expected to be announced in summer 2023.

For more information about how to apply for a DVS permit, please click here


*Please note: The DVS star rating you receive will be from the manufacturer and will not take into consideration any aftermarket safety devices that have been fitted.”


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