client.lua
setTimer ( function ()
local theCol = getElementData(root, "BlockExportCol")
	
function isInColExport ()
	if isElement(theCol) and isElementWithinColShape(localPlayer,theCol) then
		return true else return false
	end
end
function ClientExplosionCFunction()
 if isInColExport ()  then
  cancelEvent ()
 end
end
addEventHandler("onClientExplosion", root, ClientExplosionCFunction)
end , 1000, 1 )
shared.lua
BlockVehicle = createColCuboid (  1573.84900,-1637.5,12, 10,6,6  )
setElementData(root, "BlockExportCol", BlockVehicle)
	I want to block vehicles in more areas  how can I do it?