Interpretation of Risk Profiles with SafetyNex
A new paper by Nexyad

Posted on



Lire la version Française

NEXYAD has been developing the smartphonte application SafetyNex which estimates the risk of driving in real time [1]. SafetyNex is both a driver assistance system (ADAS), which alerts the driver (vocal alert) before danger (When the risk increases too much), and a telematics system that records risk profiles and usage profiles.
Warning before the danger gives the driver time to slow down and avoid the accident. Road Safety studies show that SafetyNex can reduce the number of accidents by 20% [2]. This simple functionality is of interest of car insurers, fleet managers, and to car manufacturers.
SafetyNex also rewards the driver with cups (gold, silver, bronze) that can be transformed into money incentive (vouchers, etc.) so that the safe drivers stil have a daily interest to go on using SafetyNex. Indeed, tools that are not used over a period of time rarely have a real effect on the accidentology. SafetyNex is therefore distinguished from other products, on the one hand by its real time and driving assistance, but also for its “reward” side. SafetyNex informs the driver In real time when the risk exceeds a threshold of danger, than one can say that SafetyNex gives the risk in the hands of the driver first. The driver is in control of his/her risk.
Then SafetyNex distinguishes from all telematics products that ultimately provide information to the insurer or fleet manager, but not to the driver who feels rightly spied on.
Risk and usage profiles [3] are forwarded to managers who have an interest in minimizing risk and the number of accidents. This paper presents a simple way to interpret the risk profiles constructed by SafetyNex.

SafetyNex estimates risk of driving at every instant.
Since SafetyNex also measures usages, it measures among other things the durations and the number of traveled kilometers.
One can then construct the curve Risk (t) which is the risk at each moment, and also the curve Risk (km) which is the risk at each point of the route.

Risk Distance

Risk Distance rated

Let’s consider one or the other of those curves, it is easy then to cut the risk into slots:

Risk 03

It is therefore possible to calculate the total duration spent [resp the total number of km carried out] with a risk
between 10% and 20%, for example (or between 50% and 60%). The graph of these durations [resp number of km] for each range of risk (0% -10%, 10% -20%, etc.), looks like :

Graph 4

It can be seen that this graph can be seperated into three parts:

Graph 05

. A very high bar of near zero risk
. A shape of « bell curve » comparable to a gaussian
. Rising at the very end towards high risks
NEXYAD has run over 3,500 testers since June 2016, and has been able to interpret the shapes of these curves.

The large quasi-zero risk bar simply expresses the fact that overall the car is a safe mode of transportation.
The part that draws a bell curve has a more or less strong spread : we have noticed that experienced drivers have a narrow curve (repeatability of their driving style is high) while beginners have a huge spread (they can’t drive always the same way).
The centering of the bell curve (maximum likelihood) corresponds to the way in which the driver takes a controlled Risk : cautious beginners have a low maximum likelihood (they try to take as less risk as they can) while experienced drivers have a higher maximum likelihood : they know what risk level thay can cope with.
Finally, the values that go up to the right (tail of distribution of the curve in bell) correspond to the vocal alerts, that is to saycases where the driver has not fully understood that the risk is high. In other words, it is the lack of anticipation and misunderstanding of road.

SafetyNex’s risk profiles make it possible to understand the kind of driver you have :
. Cautious / not cautious (maximum likelihood of the bell curve position)
. Experienced / beginner (spreading of the bell curve)
. Lack of anticipation / very good anticipation (queues of distribution of the curve in bell)
Fleet insurers and managers therefore have all the information that they need to help the driver.
For example, within the framework of prevention plans, offering training adapted to each type of risky driving.
We validated this information by driving 3,500 testers, including beginners, experienced drivers, and also pilots (who in take risks appearance, but in reality have a very safe driving). This allowed us to give these interpretations of SafetyNex’s risk profiles.
With the deployment of SafetyNex to reduce the number of accidents, professionals structurally gain margin, and can use this margin to analyze profiles, segment them, and find the segments where it may be interesting to develop UBI (Usage Based Insurance) and real time pricing fleet.
This multi-functionality of SafetyNex makes it a unique and effective tool for managing driving risks.




le JDN : Mov’eo accélère les cracks français de la mobilité intelligente

Posted on

Aujourd’hui le JDN ou Journal Du Net publie l’information que nous vous proposions il y a quelques jours en avant première : Mov’eo consacre Nexyad PME Championne.

Le pôle de compétitivité dédié à l’automobile lance le programme “PME championne” pour accompagner la croissance des entreprises les plus prometteuses du secteur.

Adaccess et Nexyad sont les deux premières PME à avoir été choisies. La première, créée en 2013, a séduit Mov’eo avec eVa, une plateforme de mutualisation des données anonymisées générées par les véhicules connectés à destination de l’industrie automobile. “Les essais par roulage coûtent très cher donc cette solution de mutualisation permet à tous les acteurs internationaux de la R&D automobile d’accéder aux data que leurs partenaires et concurrents veulent partager.”
La start-up yvelinoise Nexyad a aussi tapé dans l’œil du pôle grâce à SafetyNex, une application mobile qui estime en temps réel le risque de conduite. Elle alerte vocalement le conducteur avant un danger pour qu’il puisse ralentir, avec la promesse d’une réduction de 20% du nombre d’accident, et enregistre les profils d’usages et de risque des utilisateurs. Lauréate du BMW Tech Date en 2016, Nexyad s’adresse aux constructeurs et aux équipementiers qui veulent fournir une navigation intelligente en première et/ou en seconde monte ainsi qu’aux assureurs automobiles qui souhaitent proposer des contrats personnalisés. “Des négociations avancées sont déjà en cours avec des assureurs et la sortie officielle est proche”, assure Thierry Bapin.

Lire l’article sur le JDN

voir aussi :Mov'eo consacre Nexyad PME Championne

SafetyNex App Risk Profiles Analysis

Posted on

Risk profiles estimated by SafetyNex: Analysis of profiles, and possible use to detect fatigue and hypovigilance of driver.

SafetyNex is a nomadic real-time risk estimation system. The system has been described in detail in previous publications [1] and uses the key concept of “near-accident” or “quasi-accident”, and is a result of 15 years of collaborative research with road safety experts and researchers.
The main competitive advantage of SafetyNex is that it allows, since the risk is estimated in real time,
to warn the driver (vocal alert), and thus to allow driver to avoid accident. Studies show that SafetyNex can reduce accident rate by 20% [2], which represents for insurers and fleet managers a consequent increase in margin [3].
But of course, SafetyNex also records usage and risk profiles. These profiles provide the behavior of the driver, or more precisely, his/her ability to regulate driving task consistently with danger. No need to record large volumes of data (accelerations, etc…) which in reality are not data (these are signals) for a possible back-office analysis, SafetyNex provides exactly the interesting data [4].
Below are examples of usage profiles and driver risk profiles.

. Read the entire paper
. Analyse des profils de risque en conduite estimés par SafetyNex (version française)

Nexyad invited to the 4th “Les rencontres du Fleet Management”

Posted on

Last thursday 26th of january 2017, Gérard Yahiaoui CEO of Nexyad participated to a panel debate in Paris near Les Champs Elysées. He was invited as road safety telematics expert. Marie-Amélie Fenoll journalist at Decision Achats animated the discussion between other speakers : Jean-Yves Marie Rose of Ademe, Julien Honnart of Wayzup, Didier Blocus of ALD Automotive France, Edwin Colella and Alain Sinquin of Octo Telematics.

Fleet Management faces numerous problems and stakes in terms of safety, monitoring of drivers, training and loss costs. Gérard Yahiaoui presented SafetyNex App risk assessment in real time, that warns the driver before danger and gives individual and global risk profiles and usage profiles. An API of SafetyNex will be available very soon to integrate in any device. SafetyNex use allows to reduce accident rate by 20%.

Les rencontres du Fleet Management partners are ALD Automotive France, Ayming, Codes Rousseau, La carte carburant pro E. Leclerc, Octo Telematics and Phoenix development.

Gérard Yahiaoui Nexyadfrom the left Marie-Amélie Fenoll, Edwin Collela and Gérard Yahiaoui

“Check NEXYAD Technologies for New Mobility Applications”
Automotive & Transportation Newsletter #14 is Available

Posted on

NEXYAD Automotive & Transportation Newsletter #14, December 23th, 2016

Check NEXYAD Technologies for New Mobility Applications

Headlines :

– Demo video of SafetyNex : Smartphone App Onboard Real Time for Driving Risk Assessment
– Cercle LAB Symposium : new digital technologies for Insurance and Bank
– FinTech Community Symposium
– New Release of SafetyNex : Real Time Driving Risk Assessment for Car Industry and Insurance Companies
– Nexyad Technologies for Car Industry and New Mobility : SafetyNex – RoadNex – ObstaNex – VisiNex
– R&D project BIKER ANGEL (Driving Risk Assessment for Motorbikes) has been certified by the pôle FINANCE INNOVATION
– Business Trip to CES at Las Vegas

Read the Newsletter #14


R&D project BIKER ANGEL has been certified

Posted on

R&D project BIKER ANGEL has been certified by the pôle FINANCE INNOVATION.
This project consists in making SafetyNex available for motorcycles.
Partners of this project are : HERE, IFSTTAR, NEXYAD, POINT CORE
NEXYAD is the project leader.
Submission of this project has been sent to FUI (Fond Unifié Interministériel – France).

Biker Angel - Label Finance Innovation

Le project BIKER ANGEL a été labellisé par le Pôle FINANCE INNOVATION.
Ce projet consiste à adapter SafetyNex pour les motards.
Les partenaires de ce projet sont : HERE, IFSTTAR, NEXYAD, POINT CORE
BIKER ANGEL est porté par NEXYAD.
Ce projet fait l’objet d’une demande FUI.