There are a variety of ways to get more traffic driven to your website. This can be done by:-
Search Engine Optimisation - To help people find your site through the major search engines, it needs to be built with the correct structure and content. Once the site goes live it can take some time for it to start working its way up the search engine listings. Find out more about SEO
Google Adwords - If done correctly this can be a very quick and cost effective method, of getting visitors to your website.
E- marketing - Targeted e-mail campaigns with good content can be very effective. They can also offer much quicker results than waiting for your ratings to rise within the search engine rankings.
Traditional Marketing - This could be radio or newspaper advertisements. It could also be giving out your business cards and promoting your website on your signage and vehicles.