A method, system, and/or computer program product creates an unimpeded pathway on a roadway for a first self-driving vehicle (SDV). One or more processor(s) determine a first vehicle priority level of the first SDV by determining that a current planned destination of the first SDV is a health care facility, an electronic calendar has no appointment entry on a current date for a passenger of the SDV at the health care facility, and thus the passenger is making an emergency visit to the health care facility. The processor(s) determine that the first vehicle priority level is higher than the other vehicle priority levels. The processor(s) then direct SDV on-board computers on other SDVs to adjust spacing distances between the other SDVs, such that adjusted spacing distances between the SDVs provide a pathway including unobstructed lane changes for the first SDV, permitting the first SDV to maneuver in an unimpeded manner.