There are multiple national, regional, and international programs underway at present. There will be no attempt to describe all of them and the exclusion of any does not imply a lack of recognition or importance of any of these. It is hoped that over time, this site can be expanded to include all of those for which input can be obtained. If anyone has a contribution to make to this site, please notify Lee Armstrong at LRA@tiac.net.
Following are sections for ISO, CEN, Japan, Korea, and Brazil.
All of the DSRC activities within ISO are taking place within TC204. There are, within TC204, two different working groups developing DSRC, or DSRC-like, communications standards. In addition to the communications standards themselves, many other working groups are developing standards for applications that utilize DSRC for communications.
WG15 is responsible for DSRC communications and is currently engaged in two work items, one for the Application Layer (L7), and the other for Resource Manager.
WG16 is responsible for medium to long range communications over an air interface. As such, these are not classified as DSRC for several reasons, including the operating range, data rates involved, and applications supported. The current North American DSRC standards under development for 5.9 GHz, while still being referred to as DSRC, more closely fit with the scope of WG16 than WG15. There are multiple subgroups within WG16 covering several different communications media, Internet Access, Architecture, and Vehicle Probes.
CALM Presentation given at ITS America Annual Meeting, April 2002.
The European CEN organization has developed its on set of DSRC standards, which includes standards for the Physical Layer (L1), Data Link Layer (L2), and Application Layer (L7). There are new versions of these standards under development for which details are not available.
The Japanese have developed their own set of DSRC standards published as ARIB T55. These include standards for L1, L2, and L7. The ARIB L7 is based on and is compatible with the CEN L7 standard. A new generation of standards is nearing completion, which will be known as ARIB T75.
Japanese presentation given at ITS America Annual Meeting, April 2002.
Complicating the Japanese situation is a standard based on infrared technology that is in use within major cities and is controlled by the National Police Agency. This is in contrast to the ARIB standards using rf technology that are in use on highways outside of the cities.
At present, the TTA standard is active DSRC(5.8GHz). But Korea Highway
corporation adopted the passive system ( the Italian system)
17,000 OBE are distributed, which are operating for a trial service.
Since 4 March the active DSRC system (5.8GHz) is being tested for ETC service
under control of ITS Forum. ITS forum is sub forum under ITS Korea.
ETC committee is one of the committees in ITS forum which is closely related
in Korea Highway Corporation.
Along with the result, the Government will decide the polocy for ETC.
The positions of the Governments are little bit different. MIC have a responsibility for frequency bands. MOCT(Ministry Of Construction and Transportation) plans the ITS policy.
At the present moment (March, 2002) DSRC applications in Brazil are almost exclusively limited to Electronic Toll Collection.
Weight in Motion has already started but the stations are not interconnected
yet. Commercial Vehicle Operation and Border Crossing are being considered
and could be locally implemented by middle 2003.
As far as ETC is concerned, two systems are in operation. The region of Rio de Janeiro is utilizing Amtech R/O 915 MHz equipment. Approximately 110,000 tags are utilized by 5 conceded highways, 4 of which are interoperating. The State of Sao Paulo adopted Q-Free R/W 5.8 GHz equipment. Some 120,000 tags are utilized by 15 highways, 12 of them conceded and all of them interoperating. Q-Free also supplied equipment for one conceded highway in the State of Espirito Santo.
The adoption of a national DSRC standard has been the subject of debate in the Country since 1997, initially under the auspices of ABCR, the Brazilian Association of Highway Concessionaires. Subsequent discussions have indicated that regional rather than national standards are a better option, in order to preserve competition among suppliers and take as much profit as possible from technical advancements. A Brazilian DSC Standard proposal - heavily inspired in the Australian Double Transaction Protocol - is presently under consideration at the Ministry of Transportation, although a final agreement by interested parties on this subject is still to be reached.