1498                               Laws of Maryland                          Ch. 534

(13)    Tractor: means a vehicle designed for drawing or towing
other vehicles and having no space for the carrying of a load or
cargo.

(14)    Traffic: in addition to its generally accepted meaning, in-
cludes pedestrians, animals ridden or herded, and vehicles propelled
by human power.

(15)    Trailer: means a vehicle (other than semi-trailer), not self-
propelled, designed and constructed to be towed.

(16)    Truck: means a motor vehicle designated, used, or registered
for the transportation of goods, wares, merchandise, or bulk cargo.

(17)    Tunnel: means the Baltimore Harbor Tunnel, sometimes
known as the Patapsco Tunnel.

(18)    Vehicular crossing: includes not only the tunnels and
bridges operated and maintained by the Toll Facilities Department of
the State Roads Commission of Maryland, but also the approaches
thereto as above defined.

(19)    Unusual vehicle: includes those which because of weight,
height, length, or width require special permits to travel on the
highway.

§ 11-1402. Traffic must comply with signs and orders.

Traffic using the vehicular crossings at all times shall comply with
any lawful sign, order, signal, or direction by voice, sign, or hand of
authorized employees of the vehicular crossing.

§ 11-1403. Pedestrians and bicycles prohibited.

Pedestrians and bicycles are prohibited from using the vehicular
crossings.

§ 11-1404. Hitchhiking and pick-up or discharge of passengers
prohibited.

Hitchhiking is prohibited on any of the vehicular crossings, and it
shall also be unlawful for motorists to pick-up or discharge any per-
son on any of the vehicular crossings.

§ 11-1405. Stopping, standing, or parking prohibited.

Vehicles shall not stop, stand, or park on any vehicular crossing
except:

(1)    When necessary to avoid injury or damage to persons and
property;

(2)    In compliance with the lawful direction of authorized em-
ployees of the vehicular crossing;

(3)    At designated areas for the transaction of business at the
administration buildings; or

(4)    If disabled, in which case the vehicle shall be withdrawn, if
possible, to the shoulder of the roadway, or adjacent to the emergency
walkway on a bridge, or moved as directed by a patrol officer.