During busy periods Dorchester BID runs a Town Ambassadors Scheme. The Ambassadors position themselves strategically in the town's car parks. They are in radio contact with one another and will help you to find a parking space. They also hand out information sheets about the town and are more than happy to give directions.
To reach the main part of town from the 3 central car parks, Wollaston, Acland Rd and Old Market head west towards the backs of the row of shops. You can get through to South Street either from the top corner by Waitrose or at the other end via the Hardye Arcade.
To reach the TIC look for Antelope Walk at the end of South Street nearest to the tall monument - The Town Pump. The TIC is at the other end of this.