Timing  

Also, you need to understand the timing. Your target market may indeed be available more in a location, but you need to know how long and when is the best time to catch their attention there. This will determine your operations and logistics. 

Responsiveness 

You need to know if your target market or audience relates to posters. Now, they can see the posters, but what is the possibility that they will take note of the information or details on the posters.

You need to be sure that the target market is poster responsive. Do they really wait to read posters? That's the question you need to ask. 

Leverage Demographics And Other Data 

Furthermore, you need to understand locations in the areas where your target market can be able to see your posters. You can reach out to advertising agencies to know the daily demographics of these locations per time and where you can pitch your tent to engage your target audience.  

If you follow through, you will realize that you need a lot of data for the poster project to be successful. And you must learn to use data to make your decisions when engaging your target market through posters. It's a game of numbers, and it must be well understood.  

Once all of these are sorted, and you still have a green light. Then it's time to start thinking about getting a poster printing service that can deliver quality poster printing design. Even at this point, you have some serious work to do. This is to ensure you get someone that can provide an excellent design with content that can attract and convert.