Superloop has been designed as part as competition project for Tallinn Architecture Biennale “Self-Driven City”. The project was awarded honorable mention.
This proposal is intended for time when autonomous cars will be 100% main city transportation. What will that mean for city streets and intersections?
Time is most valuable unit and humankind always are longed for doing most in less time. The goal to “travel to destination faster” is one of the main drive reasons for transport infrastructure evolution. Horses, bicycles, trains, cars, aircrafts etc. The efforts to reach this goal will guide the development of the technology and the city also in the times to come. Autonomous cars definitely will solve the more productive use of travel time itself, but this time after all won’t solve the base goal – “travel to destination faster”. Cities and roads that are adapted to autonomous cars can help to reach this goal.
As there will be no human error there will be no or very high speed limit. Today speed limit on city roads varies from 30- 50km/h. With only autonomous cars on roads speed limit could be 150km/h. If speed limit is that high, the only thing stopping cars are intersections. Autonomous cars have to slow down taking turn because of centrifugal forces acting on vehicle. Tires don’t have enough grip and car simply slips out of the turn or flips over. This is where superelevation comes in when designing roads.
Our proposal is aiming for intersection solution concept that is as fast as possible. Concept that can be adapted and used in every intersection no matter how much traffic lanes are intersecting. In that way there is no traffic jams and for the first time city can narrow car roads leaving more space for pedestrians and bicyclists.
Designer : Atis Sedlenieks and Dārta Dambe