DORIS gets out of the traffic jam

Dresden's new traffic information system

Real-time route planning via mobile phone Fraunhofer IVI
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Researchers at the Fraunhofer Institute for Transportation and Infrastructure Systems (IVI) have presented a new traffic information system in Dresden, DORIS. The dynamic and daily updated route planner can be queried via Internet, SMS, PDA and locally at information terminals.

Who does not know that. You drive your daily route home, but suddenly you are stuck in traffic. The exit road is being built and traffic is being routed around the construction site at walking pace. Such "bad" surprises are to be spared in the future the motorists. Researchers at the Fraunhofer Institute for Transportation and Infrastructure Systems IVI in Dresden have developed a new routing system. The system displays the cheapest connection between two locations. The special feature: The drivers are automatically routed around construction sites. The real-time capable MIV routing system was developed in the BMBF-funded master project »intermobil Region Dresden«.

Daily updated information

How does dynamic route planning work? You just enter the start and finish of the journey on the Internet - and the system calculates a connection without any annoying construction sites. Every day, the Road Traffic Authority specifies which roads are being built and which construction projects have already been completed. On this database, the cheapest route is determined.

The system currently contains 10 000 roads with about 145 000 house numbers. "In addition, around 4, 000 important locations, such as attractions, venues, excursion destinations or authorities, are included, " explains Hendrik Wagner from the IVI. The basis of the route planner is the road network of the Dresden region with approx. 30, 000 nodes and 157, 000 turn-off options. In the next few months, the system will be expanded further. "In the future, information about large events, street parties and the data from live cameras, which are positioned at important traffic points in the city, will also be incorporated into the route planning, " reveals project manager Ulf Jung from the IVI.

Mobile communication

The routing system is part of the city and traffic information system for the Dresden region - DORIS for short (Dresden-Oberelbe Regional Information System). DORIS has so far mainly informed public transport users about bus and rail connections. Anyone who wants to know after a visit to the Semper Opera House how to get home the fastest can simply call up the current departure times via mobile phone. Whether a tram fails due to an engine failure or is delayed due to an accident on the Carolaplatz, the system detects and adjusts the timetable information accordingly. display

Users can access the information via the Internet and at information terminals. There they not only find out when the next tram leaves, but can also find out about departing trains or the next flight to Munich. If you travel a lot, mobile access to the current timetable data is especially interesting for you. Users can simply have the current data sent to their mobile phone or PDA. This service is well received. "The SMS timetable information is called up more than 1, 000 times a day, " reports Wagner. The major lead project has paid off for the Dresden region. There are already 50 product innovations such as the timetable information via SMS or the routing system in constant use.

(Fraunhofer Institute for Transportation and Infrastructure Systems (IVI), 02.09.2004 - AHE)