Loading area requirements for every building, structure
or part thereof having over 5,000 square feet of gross building area
erected and occupied for commerce, hotel, hospital, laundry, dry cleaning,
places of public assembly, industry and other similar uses involved
in the receipt and distribution by vehicles of materials or merchandise,
there should be provided and permanently maintained adequate space
for standing, loading and unloading services in order to avoid undue
interference with the public use of streets or alleys. Every building,
structure or addition thereto having a use which complies with the
above definition should be provided with at least one truck standing,
loading and unloading space on the premises not less than 12 feet
in width and 35 feet in length and shall have a minimum clearance
of 14 feet. One additional truck space of these dimensions should
be provided for every additional 20,000 square feet, or fraction thereof,
of gross area in the building.