1362 LAWS OF MARYLAND. [CH. 560

having the same characteristics as an expressway except that
the conflict of cross streams of traffic need not be eliminated
at every intersection by means of grade separation struc-
tures.

(C) (Expressway.) The term "expressway" shall mean a
major thoroughfare of two or more traffic lanes in each di-
rection, designed to eliminate principal traffic hazards, and
shall embrace all bridges, tunnels, overpasses, underpasses,
interchanges, entrance plazag, approaches, and other struc-
tures which the Commission may deem necessary to the
operation of the expressway, together with all property,
rights, easements, franchises and interests acquired by the
Commission for the construction and operation thereof,
and having the following characteristics: (a) a median divi-
der separating opposing traffic lanes to eliminate head-on
collisions and side-swiping; (b) grade separation structures
to eliminate the conflict of cross streams of traffic at all
intersections; (c) points of access and egress limited to
predetermined locations; (d) vertical curves of lengths suffi-
cient to provide long sight distances; and (e) shoulders of
widths adequate to permit vehicles to stop or park off traffic
lanes

(D) (Bridge.) The word "bridge" shall mean any bridge
or highway grade separation structure and shall embrace
the sub-structure and super-structure and the approaches
thereto, and such entrance plazas, interchanges, overpasses,
underpasses, connecting highways, and other structures which
the Commission may deem necessary in connection there-
with, together with all property, rights, easements, fran-
chises and interests acquired by the Commission for the
construction and operation of such bridge.

(E) (Railroad Grade Separation.) The term "railroad grade
separation" shall mean any overpass or underpass which
shall eliminate any railroad grade crossing, and shall em-
brace the overpass and underpass structure and the ap-
proaches thereto, and such entrance plazas, interchanges,
connecting highways, and other structures which the Com-
mission may deem necessay in connection therewith, to-
gether with all property, rights, easements, franchises and
interests acquired by the Commission for the construction
and operation of such railroad grade separation.

(F) (Project.) The word "project" shall mean the re-
construction or relocation of one or more sections of the
State Highway System, or the construction of one or more
sections of two-lane arterial highways, or one or more sec-
tions of controlled access arterial highways, or one or more