SKY Project - Intersection Collision Avoidance

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SKY Project - Intersection Collision Avoidance
General information
Type: Field operational test
Tested system/service: Autonomous Systems
Countries: Japan 2000 test users
6 partners 2000 vehicles
Active from 2004 to ?
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Masao Fukushima
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SKY General information: The SKY project is a field test of applications already available on the market or coming soon. It is carried out by a large number of ordinary people in real traffic conditions. The SKY project started with several initiatives such as intelligent speed advisory testing with 2,000 participants around primary schools, intersection collision avoidance using V2I with the same number of participants, small children traffic safety using RFID with 300 participants, pedestrian traffic safety using GPS cell phone by 700 participants, hazard warning on winter road by 150 participants, real time probe car data collection by 2,700 vehicles, etc.

This FOT is in order to grasp the effectiveness of “Intersection collision avoidance", such as crossing collision avoidance, stop sign violation avoidance, red signal violation avoidance, and rear end collision avoidance at red signal queue.

Details of Field Operational Test

Start date and duration of FOT execution

Oct. 2006 – Mar. 2009

Geographical Coverage

Yokohama city, Kanagawa prefecture Japan

Link with other related Field Operational Tests

Other SKY FOTs



  • To help reduce traffic accidents
  • Ease traffic congestion using ITS


  • Collaboration with infrastructure, in addition to technology in vehicles themselves.
  • Use of information on the status of nearby vehicles and the surrounding traffic environment.


Lessons learned

Main events

Several press release events


Summary, type of funding and budget

Cooperation partners and contact persons

  • Steering Committee: SKY project committee by Nissan, NTT Docomo, Panasonic, Clarion, UTMS (Universal Traffic Management Society Japan)
  • Public Authorities: National Police Agency Japan, Kanagawa Prefectural Police
  • Industry
    • Vehicle Manufacturer: Nissan
    • Partners: NTT DOCOMO, Panasonic, Clarion
    • Supplier:
  • Users:
  • Universities:
  • Research Institutes:
  • Others (specify): Universal Traffic Management Society of Japan (UMTS)

Main Contact persons

   Masao Fukushima 
   Engineering Director
   IT&ITS Engineering Department
   Tel +81-50-2029-1028 
   Noriyuki Tsukada 
   IT&ITS Engineering Department
   Tel +81-50-2029-1038

Applications and equipment

Applications tested

Intersection collision avoidance, such as crossing collision avoidance, stop sign violation avoidance, red signal violation avoidance, and rear end collision avoidance at red signal queue


2,000 regular passenger cars

Equipment carried by test users


Infra Red Light Beacon for data communication and driver behavior change monitoring

Test equipment

  • Infra Red Light Beacon
  • Intersection side video cameras


Pre-simulation / Piloting of the FOT

Method for the baseline

Techniques for measurement and data collection

2 points of road side unit before the intersection get participants real time running data via V2I communication by IR beacon.

Objective: Real time running data logging system by road side units Subjective: Questionnaire survey, and interview.

Availability of data: Contact FOT contact person.

Recruitment goals and methods

2000 ordinary drivers in their every day car life. Ordinary drivers, Nissan customers, who live in Yokohama city who answered yes with some incentives, free 3 media VICS beacon on-board antenna and free car navigation map database update.

The number of participants, 2,000, was decided on the premise that some participants would never come to the test sites (9 intersections in Yokohama city).

Methods for the liaison with the drivers during the FOT execution

Participants were occasionally asked to fill a questionnaire survey. Participants just used their car like they do in everyday life.

Methods for data analysis, evaluation, synthesis and conclusions

Using the logged and stored data, statistical analysis may show whether or not there is some difference between the data with/without safety support information or system.

Sources of information

ContactMasao Fukushima +
CountryJapan +
Is type ofField operational test +
NameSKY Project - Intersection Collision Avoidance +
Number of partners6 +
Number of test users2,000 +
Number of vehicles2,000 +
Started2004 +
Tested system or serviceAutonomous Systems +
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