1. Since it is in the public domain, Outdoor Advertising assuredly reaches its audience. People cant't "switch it off" or "throw it out." People are exposed to it whether they like it or not. In this sense,outdoor advertising truly has a ' captured audience."

2. It's messages work on the advertising principle of " frequency." Since most messages stay in the same place for a period of a month or more, people who drive by or walk past see the same message a number of times.

3. Particular locations can be acquired for certain purposes. A billboard located a block in front of your business can direct people to your showroom, or you can reach rural areas efficiently by placing a billboard in each small town.

4. Outdoor advertising is an excellent adjunct to others of advertising you are doing. In fact, it is most effective when coupled with other.