Cycle Safety Shield



What Is Cycle Safety Shield

Each year in the UK around 19,000 road accidents involving cyclists occur, resulting in serious injury or death. In 2012 cyclist’s deaths on Britain’s roads hit a five-year high with 122 cyclists killed and 106 of these accidents known to have involved a motorist. It is feared that these figures will increase due to the recent boom in cycling amongst people of all ages and the UK’s roads becoming even busier.

This health and safety issue needs to be addressed quickly as the government is actively encouraging, with financial incentives, more people to cycle in order to:

  • Reduce pollution from motor vehicles
  • Ease congestion in city centres
  • Improve health by exercise

Many common accidents occur when a large vehicle is turning left into a side road and a cyclist on the nearside cannot be seen. Accidents like these could be avoided by use of the Cycle Safety Shield System, which will warn a driver when a cyclist is within “danger zones” like the nearside blind spot area.

Cyclists and Pedestrians are the most vulnerable road users, whilst also being the most difficult to observe both in day and in night conditions. Pedestrians in the vehicle path or walking into the vehicle path are in danger of being hit causing severe injury both to the pedestrian and potentially also to the vehicle occupants.

Cycle safety shield`s Cycle and pedestrian detection technology runs on Mobileye’s EyeQ2 propietory chip. Both static and moving cyclists and pedestrians can be detected to a range of around 30m using VGA resolution imagers. The system makes use of Mobileye’s technology; Mobileye is a technological leader in the area of advanced image sensing and processing technology for automotive applications, with a product offering covering the entire range of vision applications for on board driving assistant systems.

Cycle safety shield`s Cycle and pedestrian detection technology runs on Mobileye’s EyeQ2 propietory chip. Both static and moving cyclists and pedestrians can be detected to a range of around 30m using VGA resolution imagers. The system makes use of Mobileye’s technology; Mobileye is a technological leader in the area of advanced image sensing and processing technology for automotive applications, with a product offering covering the entire range of vision applications for on board driving assistant systems.

Cycle safety shield have worked in partnership with Mobileye to develop a standalone system that concentrates on Cyclists and pedestrians detection whilst retaining all of the original features of Mobileye.

A key requirement for an improved safety culture is better driver training and awareness. Cycle safety shield delivers part of this training through its warning and anti-collision detection in the following ways:

Cyclist and pedestrian detection

CSS detects multiple cyclists and pedestrians and advises the driver of their position, this gives the driver a warning so even if there is a cyclist in their view there may also be another cyclist in their blind spot.

The system trains the driver that multiple cyclists and pedestrians can be surrounding their vehicle especially in city environments. The CSS visually warns the driver when they are present and can also be partnered with monitors which show the positions of all drivers and cyclists in real time.

By this style of warning and display the driver does not get complacent and starts to check all of his safety aids before making a manoeuvre.

The system complements existing systems within the FORS scheme and is an essential training and safety aid for City drivers.

Vehicle collision avoidance –

Rear-end accidents are the most common accident types. The importance of keeping sufficient headway for reduction of accidents is recognized by traffic authorities worldwide and is being enforced in an increasing number of countries. Even when sufficient headway is kept a momentary lack of concentration can lead to a situation where a rear-end collision can occur. Mobileye’s Vision-only Vehicle Detection provides a Forward Collision Warning (FCW) in situations where the host vehicle is approaching a preceding vehicle with a high closing rate. This FCW alerts the driver of the critical situation and therefore can prevent or mitigate an accident.

Forward Collision Warning detects whether a crash is imminent by computing the ‘Time to Contact’ (TTC) taking into account host vehicle speed, relative speed and relative acceleration. The latter are measured using change of the image size of the target (scale change). In case of a predicted crash, a ‘critical’ warning is given to the driver.

The driver is already pressing the brake pedal – in this case the warning can be given a little later as the drivers response time may be reduced as the brake pedal is already depressed and the time to avoid the collision can be shorter. On the other hand it is important to provide the driver with an alert also at these cases because in such conditions the driver may not notice the slow drift. It is a backup mechanism to alert the driver that the danger has not yet passed.

By using this function the driver becomes more aware of the distances required to brake effectively and quickly starts to adjust their driving behaviour.

Lane departure warning

The LDW module uses the information from the lane detection module, on the basis of a Time to Lane Crossing (TLC) calculation, to provide a warning to the driver in case of unintentional lane departure. The warning mechanism can be tuned for sensitivity – for example, the system can be set to warn only when the vehicle is actually crossing the lane marking, or give an early warning, before lane markings are crossed. The warning can be adapted to the type of road – for example, it could provide the driver with more slack in case of narrow roads or allow the driver to “cut” curves.

This function also trains the driver to always use indicators when changing lanes to avoid the system warning which also helps other road users and warns cyclists and pedestrians that the vehicle is turning or departing from the existing lane.

Traffic sign Recognition including speeding warning

Traffic Sign Recognition (TSR) is a driver support function which can be used to notify and warn the driver which restrictions may be effective on the current stretch of road. Examples for such regulations are ‘speed limit zones’ or ‘no-overtaking’ indications. The system can help the driver to maintain a legal speed, obey local traffic instructions, or urban restrictions.

The system recognizes and interprets various traffic signs, both fixed signs on the road side and variable LED signs overhead, using vision-only information and therefore signs which may be obscured by other vehicles or trees may not be recognized.

Head lamp control

The essential aim of IHC is to assist the driver with the correct use of high-beam by automating the switching between high and low beam in defined scenarios. It supports the driver in using the high beam to the fullest extent possible, automatically raising and lowering the high beams without inconveniencing oncoming or preceding traffic. The function benefits both the driver and other road users as high beam glare from preceding or oncoming vehicles is a major contributor to accidents, where vehicle high beams can momentarily ‘dazzle’ other road users and contribute to accidents.

Drivers usually do not turn the high beams on or off when needed and instead, keep the headlights off in order to avoid frequent switching and often forget to dim the headlight in the face of oncoming or preceding traffic. This can dazzle other road users and contribute to accidents. Alternatively remaining in low beam illumination reduces the driver’s visibility range and the ability to identify and respond to hazards ahead.

The driver quickly starts to react to the system by starting to switch between high and low beam themselves to again avoid the “beep” when the system does it for them.

Fleet management – giving detailed data of driver behaviour.

The Cycle safety shield fleet management system collects data in real time on driver behaviour based on the system applications. It stores how many late braking, lane departures without signals, near misses ECT that the driver encounters which is an excellent platform to develop further training.

Cycle Safety Shield  is a safety solution for cycle and pedestrian collision prevention, mitigation and driver training.

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