Session 48_1 Andreas Allström

Jan 17, 20130 likes169 views

Andreas Allström

Är Bluetooth framtidens metod för att samla in restider? Transportforum 2013

Bluetooth för restidsmätning
• Bluetooth-enheter som passerar detekteras
• Möjligt att ändra antennens täckningsområde
• Unik MAC-adress
• Individens integritet väl skyddad
• Matchning ger restider

• En enhet kostar runt 30 000

3

Bluetooth för restidsmätning
• Används redan i ett flertal städer
• Penetrationsgraden varierar
• USA 2 - 10 %
• Danmark 20 %
• Täcker motorväg med fyra körfält
• Huvudsaklig datakälla i bl a
Houston, Chicago och Århus

4

Penetrationsgrad

16-17 13-14

ANPR 344 44 % 306 45 %

Bluetooth 128 16 % 94 14 %

Valideringskameror 790 100 % 675 100 %

6

Alviksplan-Brommaplan 23 april kl 16-17

900

800

700

600
Restid (s)

500

400

300

200

100

0
16:00 16:10 16:20 16:30 16:40 16:50 17:00
Tid

Valideringsdata Bluetooth

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Alviksplan-Brommaplan 23 april kl 16-17

900

800

700

600
Restid (s)

500

400

300

200

100

0
16:00 16:10 16:20 16:30 16:40 16:50 17:00
Tid

ANPR Valideringsdata Bluetooth

8

Alviksplan-Brommaplan 23 april kl 13-14

900

800

700

600
Restid (s)

500

400

300

200

100

0
13:00 13:10 13:20 13:30 13:40 13:50 14:00
Tid

Valideringsdata ANPR Bluetooth

9

Alviksplan-Brommaplan 23 april kl 16-17

1000

900

800

700

600
Restid (s)

500

400

300

200

100

0
16:05 16:10 16:15 16:20 16:25 16:30 16:35 16:40 16:45 16:50 16:55 17:00
Tid

Valideringsdata ANPR Bluetooth

10

Alviksplan-Brommaplan 23 april kl 13-14

500

450

400

350

300
Restid (s)

250

200

150

100

50

0
13:05 13:10 13:15 13:20 13:25 13:30 13:35 13:40 13:45 13:50 13:55 14:00
Tid

Valideringsdata ANPR Bluetooth

11

Indikatorer

RMSE (s) MPE (%)

13-14

Bluetooth 19,5 -5,6

ANPR 17,7 6,0

16-17

Bluetooth 37,7 -5,6

ANPR 25,0 -0,7

12

Alviksplan-Brommaplan 18-25 april

1000

900

800

700

600
Restid (s)

500

400

300

200

100

0
18-apr 19-apr 20-apr 21-apr 22-apr 23-apr 24-apr 25-apr
Datum

ANPR Bluetooth

13

Brommaplan-Alviksplan 18-25 april

1000

900

800

700

600
Restid (s)

500

400

300

200

100

0
18-apr 19-apr 20-apr 21-apr 22-apr 23-apr 24-apr 25-apr
Datum

ANPR Bluetooth

14

Slutsatser
Fördelar
• Kostnadseffektiv insamling
• Enkelt att installera
• Funkar i alla väder
• Täcker flera körfält
Nackdelar
• Fångar bara upp en delmängd av bilisterna
• Svårt att filtrera bort cyklister, fotgängare, bussresnärer

Slutsatser
Fortsatta studier
• Motorvägsmiljö, snabbare fordon
• Urban miljö, cyklar, bussar m.m.
• Viss typ av bilister som har Bluetooth?
• Längre fälttest

Kort sammanfattning

• Ca 15 % penetrationsgrad
• God överensstämmelse med ANPR och valideringsdata
• Filtrering nödvändig vid aggregering
• Kostnadseffektiv metod för att samla in restider

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Session 48_1 Andreas Allström

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3. Bluetooth för restidsmätning • Bluetooth-enheter som passerar detekteras • Möjligt att ändra antennens täckningsområde • Unik MAC-adress • Individens integritet väl skyddad • Matchning ger restider • En enhet kostar runt 30 000 3

4. Bluetooth för restidsmätning • Används redan i ett flertal städer • Penetrationsgraden varierar • USA 2 - 10 % • Danmark 20 % • Täcker motorväg med fyra körfält • Huvudsaklig datakälla i bl a Houston, Chicago och Århus 4

5. Fältförsök Alviksplan- Brommaplan 5

6. Penetrationsgrad 16-17 13-14 ANPR 344 44 % 306 45 % Bluetooth 128 16 % 94 14 % Valideringskameror 790 100 % 675 100 % 6

7. Alviksplan-Brommaplan 23 april kl 16-17 900 800 700 600 Restid (s) 500 400 300 200 100 0 16:00 16:10 16:20 16:30 16:40 16:50 17:00 Tid Valideringsdata Bluetooth 7

8. Alviksplan-Brommaplan 23 april kl 16-17 900 800 700 600 Restid (s) 500 400 300 200 100 0 16:00 16:10 16:20 16:30 16:40 16:50 17:00 Tid ANPR Valideringsdata Bluetooth 8

9. Alviksplan-Brommaplan 23 april kl 13-14 900 800 700 600 Restid (s) 500 400 300 200 100 0 13:00 13:10 13:20 13:30 13:40 13:50 14:00 Tid Valideringsdata ANPR Bluetooth 9

10. Alviksplan-Brommaplan 23 april kl 16-17 1000 900 800 700 600 Restid (s) 500 400 300 200 100 0 16:05 16:10 16:15 16:20 16:25 16:30 16:35 16:40 16:45 16:50 16:55 17:00 Tid Valideringsdata ANPR Bluetooth 10

11. Alviksplan-Brommaplan 23 april kl 13-14 500 450 400 350 300 Restid (s) 250 200 150 100 50 0 13:05 13:10 13:15 13:20 13:25 13:30 13:35 13:40 13:45 13:50 13:55 14:00 Tid Valideringsdata ANPR Bluetooth 11

12. Indikatorer RMSE (s) MPE (%) 13-14 Bluetooth 19,5 -5,6 ANPR 17,7 6,0 16-17 Bluetooth 37,7 -5,6 ANPR 25,0 -0,7 12

13. Alviksplan-Brommaplan 18-25 april 1000 900 800 700 600 Restid (s) 500 400 300 200 100 0 18-apr 19-apr 20-apr 21-apr 22-apr 23-apr 24-apr 25-apr Datum ANPR Bluetooth 13

14. Brommaplan-Alviksplan 18-25 april 1000 900 800 700 600 Restid (s) 500 400 300 200 100 0 18-apr 19-apr 20-apr 21-apr 22-apr 23-apr 24-apr 25-apr Datum ANPR Bluetooth 14

15. Slutsatser Fördelar • Kostnadseffektiv insamling • Enkelt att installera • Funkar i alla väder • Täcker flera körfält Nackdelar • Fångar bara upp en delmängd av bilisterna • Svårt att filtrera bort cyklister, fotgängare, bussresnärer

16. Slutsatser Fortsatta studier • Motorvägsmiljö, snabbare fordon • Urban miljö, cyklar, bussar m.m. • Viss typ av bilister som har Bluetooth? • Längre fälttest

17. Kort sammanfattning • Ca 15 % penetrationsgrad • God överensstämmelse med ANPR och valideringsdata • Filtrering nödvändig vid aggregering • Kostnadseffektiv metod för att samla in restider

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Session 48_1 Andreas Allström

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Session 48_1 Andreas Allström