3. The undertaker may make arrangements for—
(a)the maintenance, cleansing and drainage of the footway;
(b)the lighting of the footway and of that part of any building or structure which is over or above it;
(c)the provision of personnel, cameras, alarms, railings or other devices (with the exception of gates or other barriers that could be used to obstruct the use of the footway) for the security of the footway;
(d)the provision and maintenance of support for the footway;
(e)the placing or retention of anything (including any structure) in, on or over the footway but not anything which projects sideways from (whether on the horizontal or otherwise), or protrudes below the bottom level of, the footway.