Reporting by Nick Carey, Editing by Rosalba O'BrienOur Standards: The Thomson Reuters Trust Principles. The AA also urged caution. It must hand back control to the driver when required, such as when a traffic jam clears and traffic speeds up, with up to 10 seconds for the transition. Under UN regulation, the system is for use only on motorways, where traffic flows in the same direction and no pedestrians or cyclists are permitted. The government said the use of ALKS would be restricted to motorways, at speeds under 37 miles (60 km) per hour.
Free travel is permitted on certain routes.
( z0 permit :ARG1 ( z1 travel :ARG3-of ( z2 free ) ) :location ( z3 route :mod ( z4 certain ) ) )
(z0 / permit-01
    :ARG1 (z1 / travel-01
              :ARG3-of (z2 / free-04))
    :location (z3 / route
                  :mod (z4 / certain)))
Free travel is permitted on certain routes .
z1 :ARG3-of z2
z0 :ARG1 z1
z3 :mod z4
z0 :location z3