Trusted routing in VANET is a challenging task due to highly dynamic network topologies and openness of wireless architecture. To provide secure routing among the Vehicular Ad-hoc Networks (VANET) and to avoid selfish nodes, an Optimized Node Selection Routing Protocol (Trusted-ONSRP) of VANET has been designed based on trusted metrics using a Trusted Computing Algorithm. The results stated that the T-ONSRP routing shows higher performance in security measures than the existing routing protocols.