Abstract: Vehicles, systems and methods for improving traffic flow and roadway safety including an autonomous vehicle programmed to automatically interfere with at least a second vehicle in order to protect the second vehicle or occupants or property within the second vehicle. The vehicle includes a Safety Mode where the vehicle sacrifices itself to protect other vehicles, and a Passenger Mode where the vehicle exhibits priority over other vehicles which other vehicles sacrifice themselves for the benefit of the Passenger Mode vehicle. In further disclosure an autonomous vehicle includes crumple zones in non-traditional locations to more effectively protect vehicles in crashes. A computer-implemented method, system, and/or computer program product controls the autonomous vehicle configured to automatically position itself in a collision or interference with another vehicle in order to minimize force impacts upon other vehicles.

Abstract: A guardrail system and method comprises utilizing at least one through-hole of a poured concrete wall of a structure to affix a stanchion to the wall inside a bay of the structure. The stanchion allows for a guardrail to be conveniently and securely positioned within the bay without damage to the structure and without covering an edge of the structure. A fastener inserts through the through-hole which is preferably a pre-existing tie-hole resulting from formation of the wall. In one optional aspect a guardrail stanchion includes a base segment having at least two slots for receiving fasteners which insert through two tie-holes of the wall, and at least one side segment having at least one adjustment port, the side segment extending generally perpendicular to the base segment. A pair of stanchions may be affixed to opposing walls within the bay, and guardrails affixed thereto and spanning across the bay.

Abstract: A vehicle for travel on a roadway comprising a vehicle and at least one retroreflector affixed to the vehicle, at least a portion of the retroreflector having a substantially planar, substantially transparent exterior surface, the substantially planar exterior surface aligned substantially parallel to the roadway. The retroreflector is preferably mounted to an underside of the vehicle to retroreflect light from oncoming vehicles when the vehicle has tipped on a side so that an underside portion of the vehicle may be seen by an observer in the oncoming vehicle.