These cones are also used for reserving a parking area or highlighting a possible site of danger such as a slippery floor. They are also used by event management companies to highlight special parking and exit areas such as VIP parking and vehicle exit route after the end of an event. They are also used at road sites where repair or construction work is going on so that the oncoming traffic can be communicated about work-in-progress so that the lives of workers at the site are protected at all times.