Progressive Safe System (PSS)

Progressive Safe System (PSS)-DVS 2024

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New Progressive Safe System recommended by Transport For London


What Is The Progressive Safe System for DVS 2024

The easiest way to monitor and dispatch your vehicles

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Transport for London (TFL) is now proposing a significant upgrade to the existing Direct Vision Standard (DVS) ‘Safe System.’ This upgraded system is known as the Progressive Safe System (PSS) DVS 2024 and is scheduled for implementation starting October 2024.

Starting from October 28, 2024, Heavy Goods Vehicles (HGVs) with safety ratings falling below three stars will be required to incorporate the Progressive Safe System. For further information regarding the impending Direct Vision Standard 2024 (DVS) modifications and requirements, please refer to our technical details below .

Should you need any assistance with the implementation of the Progressive Safe System or seek guidance on preparing for the forthcoming adjustments, please feel free to reach out to us. Our team is dedicated to aiding you in navigating these new requirements and ensuring your full compliance. GET IN TOUCH

The Progressive Safe System (PSS) DVS 2024 star rating

When do I need to have the DVS 2024 Progressive Safe System (PSS) Fitted?

Starting in October 2024, if your Heavy Goods Vehicles (HGVs) weigh over 12T and have a safety rating of 3 stars or lower. If you operate within Greater London, you will be required to implement a DVS Progressive Safe System to apply for a Safety Permit, allowing legal travel within Greater London. Transport for London (TfL) recently concluded a public consultation on the Direct Vision Standard (DVS) for 2024 and the proposed specifications for the Progressive Safe System. Permits granted after October 2024 will be valid for 10 years.

This is the first step to establish what equipment you will require. You can contact your vehicle manufacturer, or simply send us a fleet list and we’ll complete this work for you free of charge.

Progressive Safe System DVS 2024 Kit

With this kit, you can manoeuvre safely and comply with DVS from Transport for London.

Detailed Requirements For The Progressive Safe System (PSS) in 2024

Equipment fitted to your vehicle as part of meeting the PSS must comply with the specification set out here.

Operators must ensure that their equipment for indirect vision, including Blind Spot & Moving Off Information Systems (MOIS), is fully operational. Both sensor systems must meet the performance requirements in the accompanying PSS technical specifications, available online at Direct Vision Standard and HGV Safety Permit

Both sensor systems must meet the performance requirements in the accompanying PSS technical specifications, available online at

To completely eliminate the remaining vehicle blind spot at the nearside, a camera monitoring system must be fitted, regardless of whether mirrors are fitted. In-cab monitors must be positioned close to a window edge or existing mirror location (without obscuring the view through the window) to minimize 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 maneuvering, 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.

It’s important to note that the installation of this camera monitoring system, along with the mandatory installation of the BSIS system, is an optional component and is not currently required to conform to the new PSS legislation. While it offers a valuable solution for eliminating all nearside blind spots, it is not mandatory for compliance.


Vehicles are mandated to be equipped with a front sensor system designed to activate a proximity information signal for the driver. This system’s primary function is to detect pedestrians or cyclists entering the critical blind spot area in front of the vehicle, specifically when the vehicle is stationary with the brakes engaged.

The importance of this signal is underscored by its escalation to a collision warning if the driver initiates preparations to move the vehicle from a resting position.

It’s crucial that front sensor systems are classified as ‘active,’ ensuring their capability to promptly respond to the presence of Vulnerable Road Users (VRU) without generating false alarms.

Moreover, the system should include a visual signal mechanism to indicate the detection of a VRU within the specified detection area, adhering to the technical specifications. In situations where the vehicle begins to move with a detected VRU, signalling an imminent collision, an audible alarm signal must be activated.


Blind spot information systems are required to be installed in the vehicle to ensure comprehensive coverage along the nearside of the vehicle. It is essential that these sensors do not activate in response to stationary vehicles or roadside furniture unless a collision is imminent.

For articulated vehicles, sensors must be strategically positioned on the tractor unit to offer sufficient coverage of the nearside of the combination without being triggered by the trailer itself. These sensors should enable detection within the defined zone, including areas adjacent to a semi-trailer. The specific implementation can be tailored to what works best for the technology supplier and the vehicle operator.


Vehicles are mandated to be equipped with audible warning equipment designed to alert nearby pedestrians, cyclists, and other road users of the vehicle’s intention to perform a turning manoeuvre. The volume of this audible warning, measured at a distance of one meter from the sounder, should fall within the range of 65 to 88 decibels/dB(A).

Operators are encouraged to consider the installation of an audible warning system that combines spoken warnings and white noise. Ideally, such audible warning devices should require minimal driver intervention and include a manual on/off switch for use during the hours of 23:30 and 07:00.

For left-hand drive vehicles, it is imperative to fit an audible vehicle manoeuvring warning to alert pedestrians and cyclists when the vehicle is making a right turn.


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

This must be designed to warn people walking and cycling of the hazards posed when near the vehicle.

The signage must not be offensive or give instructional advice to people walking and cycling. The text point size must be legible to a cyclist or pedestrian at a reasonable distance from the vehicle.

Signage used should be of at least A3 size.

Where in London is the DVS 2024 Enforceable?

Where in London is the DVS Enforceable?

The map displayed below illustrates the geographical region within London where the DVS (Direct Vision Standard) regulation is presently in effect, and where the requirement for permits is mandatory. It’s important to note that this regulation is applicable to all vehicles exceeding a weight of 12 tonnes, regardless of their origin, whether they originate from the United Kingdom or are entering London from foreign locations.

We are always happy to talk about your requirements and any specific issues you may be facing. Our sales consultants will put together a bespoke solution to suit your business.

Call 0203 897 3600 or Click the ‘Work With Us’ button

Direct Vision Vision (DVS 2024) Kits

Unveiling Three Solutions to Your Compliance Needs

Moving off system for the Progressive Safe System (PSS) DVS 2024


We offer a solution that meets the new requirements for Heavy Goods Vehicles (HGVs). Our front sensor system is designed to activate in response to proximity information signals, effectively detecting the presence of pedestrians or cyclists.

Camera Monitoring System (CMS) for Progressive Safe System (PSS) DVS 2024


We offer the option to enhance your vehicle’s safety by fitting a AI camera monitoring system, specifically designed to supplement our BSIS solutions or function as a standalone solution.

BLIND SPOT INFORMATION SYSTEM (BSIS) for the Progressive Safe System (PSS) DVS 2024


Our solution includes installing Blind Spot Information Systems (BSIS) to your vehicle. These BSIS sensors provide complete nearside coverage without false triggers from roadside furniture or stationary vehicles, ensuring your safety on the road.

New AI Intelligent Pedestrian Detection System

Our AI Intelligent Pedestrian Detection Camera offers versatile usage options, functioning both as a standalone camera and as part of a multi-camera setup. This flexibility extends to mounting the camera on the vehicle’s side, making it particularly well-suited for deployment on Coaches, HGVs, and Plant vehicles.

Moreover, our new PSS AI Detection system seamlessly integrates with our existing solutions, empowering you with more safety. With this integration, your vehicles will conform to the new legislation set by TFL. 

This new system not only offers comprehensive pedestrian detection capabilities but also seamlessly integrates with our pre-existing solutions, eliminating the necessity for a complete system overhaul. This integration not only streamlines operations but also leads to significant cost and time savings for you.

Our Experts

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Fleet Witness can assist you in planning the deployment
and organising installations. We have a staff of expert
fitters throughout the UK to assist you were they can 
should you require an installation.

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