Kelambakkam is an important junction connecting the ECR (East Coast Road) and the GST (Grand Southern Trunk) Road; from Kovalam to Vandaloor Zoo. It also connects Mamallapuram and Adyar. From Kelambakkam, locations connected include (Thiruporur, Mamallapuram, Adyar, Vandalur Zoo, Tambaram, ,George Town, and Tidel Park).
Kelambakkam has been a popular market for adjoining villages like Velichai and Pudupakkam. Today, Kelambakkam is better known than neighbouring Thiruporur.Kelambakkam has a bus terminus.