(3) the Convention Center building, trade show or exhibition unless the public roads that have a way of not less than 30 m or 500 m, located within from the surrounding area mass transit Skytrain station.
(15) Convention Center building exhibition. Unless, that is located on a public road with a zone at least 30 meters, or located within 500 meters from the area around rapid transit stations.
(15) Conference Center building trade shows or exhibitions. Unless the public is located in roadside area of not less than 30 meters or located within 500 meters. From the surrounding area rapid transit stations.