Dr. Josep Maria Salanova GrauCenter for Research and Technology Hellas - Hellenic Institute of TransportHead of “Data collection and processing, algorithm design, and use of specialized transport software packages” laboratoryEmail: jose@certh.grWeb: www.hit.certh.gr

Big Transport Data in Thessaloniki. What are the

benefits?

Thessaloniki on the map

~1.400.000 inhabitants~450.000 private cars & 20.000 motorcycles1.300.000 daily trips1 (+1) public transport operator for urban trips~35 public transport operators for extra-urban trips1.950 taxis6.433 kms of streets8,8 kms of dedicated bus lanes12 kms of dedicated bicycle lanes89,4 kms of ring road197.696 parking places

Existing ITS layout•Periphera

l•Urban•Central

Thessaloniki Mobility lab

Mobile sensors in Thessaloniki• Stationary sensors network: Point to point tracking of MAC

ids along the network through 43 Bluetooth device detectors.▫ Travel time estimation▫ Route choice model calibration▫ Origin – Destination matrix estimation / Mobility patterns

estimation▫ Traffic flow extrapolation

• Dynamic sensors fleet: Floating Car Data provided in real time by a professional fleets composed of 1.200 taxis and 600 buses▫ Traffic status estimation (average speed)▫ Origin – Destination matrix estimation / Mobility patterns

estimation▫ Taxi/bus performance indicators

• Social media (geolocated tweets & Facebook check-in events)▫ Activity patterns estimation▫ Events / incidents detection▫ Attraction models estimation

Dynamic Sensors Data

Floating Car Data (taxis)▫Device ID▫GPS position (X, Y, Z)▫Orientation (degrees)▫Speed (km/h) ▫Timestamp ▫Zone▫Status

Floating Car Data (taxis)•1.200 vehicles (dispatching application)

▫Circulating 16-24 hours per day▫Pulse generated each 100 meters (10-12

seconds)▫500-2.500 pulses per minute

Floating Car DataReal time traffic conditions information based on a combination of traffic

modeling and real time measurements (traffic flow and speed)

Stationary Sensors Data

Bluetooth devices detectors• 43 detectors (EEA, SEE-ITS & EASYTRIP)

▫ 4 million detections per week (peak period)▫ 25.000 unique devices detected per day (one intersection)▫ 1 million “tracked” trips per week▫ 20.000 “tracked” trips per day (one path)

• More detectors installed in other cities and in Bulgaria (SEE-ITS & EASYTRIP)

Point to point BT networkReal time travel time provision to drivers (VMS, internet,

smart device)

BDE pilot in Thessaloniki

•Probe data that is used▫Floating Car Data (500-2.500 locations per

minute)▫Bluetooth detections (millions of daily

detections in 43 locations)•Services that are being implemented

▫Improved topology-based map matching▫Mobility patterns recognition and forecasting

GPS DataMap Matching Traffic Classification and

Prediction

Classification and Prediction Data

Bluetooth Data

Results

BDE pilot in Thessaloniki

Dr. Josep Maria Salanova Graujose@certh.gr +30 2310 498 433

Thank you!

http://opendata.imet.gr/dataset

Emmanouil Chaniotakischaniotakis@certh.gr +30 2310 498 495Dr. Evangelos Mitsakisemit@certh.gr +30 2310 498 459Dr. Georgia Aifandopoulougea@certh.gr +30 2310 498 457