Sensys Gatso - Safer Mobility with Artificial Intelligence

Distracted Driving Sensys Gatso March 29th, 2022 Joris Lampe

Sensys Gatso has a strong heritage ➔ The Netherlands - The world’s first speed enforcement camera 1964, the first red-light enforcement camera 1966 and the first mobile radar speed control 1980

Sensys + Gatso

➔ Sweden - Vision Zero in 1997

2015

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Our mission is to save lives by changing driving behaviour Sensys + Gatso

1.25 million road

traffic deaths occur every year

49% of all road traffic deaths are amongst pedestrians, cyclists and Motorcyclists

# 1

22%

4%

23%

cause of death among those aged 15-29

Pedestrians

Cyclists

Motorcycles

3 out of 4

road deaths are men

SOURCE: WHO

With Sensys Gatso | “257 lives were saved in the last six months, a decrease of 15.1% compared to the first half of 2012. These results are extremely encouraging. This decline is twice as large as that observed throughout the last year. This is very significant.”

Manuel Valls, Prime Minister of France 3

Source:

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We are committed to improve traffic behaviour, everywhere Sensys + Gatso

The chance of dying in a road traffic crash depends on where you live

Low income countries have highest road traffic death rates 24.1 18.4

9.3 9.3 Europe

Europe

19.9 19.9

15.9

Eastern Mediterranean

Americas

Eastern Mediterranean

26.6 26.6 Africa Africa

17.0

17.4

9.2

South East Asia

High income countries

17.3

Western 17.3 Pacific Western Pacific

Middle income countries

Low income countries

Road traffic fatalities per 100,000 population

Road traffic fatalities per 100,000 population

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SOURCE: World Health Organisation, 2015

#2

#3

#4

#5

2.6

2.8

2.9

3.4

4 out of top 5 countries are ‘Sensys Gatso countries’

World

‘Cellular homicide’

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Sensys Gatso Group

Enforcement

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Phone to hand

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Phone to ear

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Setup definition »Camera positions determined »Phone positions defined »Overhead solutions excluded »Side facing solutions rejected »D (low) + D (high)

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Algorithm

Image enhancement » Local contrast

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Driver detection

» Whole image

Hand detection » Driver crop

Classifi cation » Hand » Hand with phone

Driver detection »First step in algorithm

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Hand detection »Within crop of driver

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Hand classification

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GDPR » AVG 25/05 » Data Protection Impact Assessment » Privacy policy

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System definition »Only position D (high) »T-Series (modified) »RT4Control (software)

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Site selection »Overpasses on highways »Within 45 minutes from Haarlem »Accessibility »Traffic volume on 2 lanes »Orientation »Phone use expectations

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Data collection » 4 locations

· N9 Alkmaar · N205 Hoofddorp · Industrial area Haarlem · A10 Amsterdam » 70.975 images » 1321 violations (∼2%)

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Figures » Violations per hour

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Figures » Percentage

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Data enrichment » All images reviewed manually » Annotate drivers, hands and hand with phones » Enlarge dataset

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Results Max Recall

Precision

Driver detection

99%

97%

Hand detection

98%

90%

complete

good

Hand classification 84 - 90%

85 - 66%

Overall

74 - 58%

81 - 87%

Max 21

Performance

Sensys Gatso

Accuracy

Overall, how often is it correct

99%

Misclassification

Overall, how often is it wrong

1%

Recall

When it’s actually yes, how often predicted yes

87%

False positive

When it’s actually no, how often predicted yes

1%

True negative

When it’s actually no, how often predicted no

99%

Precision

When predicted yes, how often correct

58%

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Performance Compared

Candidate offences ( = FP + TP )

True negative False Positive True Positive FN

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Real offences ( = TP + FN )

Performance Compared n = 10.000 Sensys Gatso 9.900

63 87 13

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Example images

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Example images

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Example images

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Photo by Frederick Tubiermont on Unsplash

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