The expressway has played an important role in alleviating ground-level road traffic in Bangkok.

[1] Due to a significant increase in road traffic on the Chaloem Maha Nakhon Expressway and heavy ground-level road traffic on the Lat Phrao, Phra Ram 9 and Ram Inthra roads, an expressway was proposed in order to alleviate this.

This connected Ram Inthra Road with the Chaloem Maha Nakhon Expressway at At Narong Junction.

[2] The expressway is planned to extend to Nakhon Nayok and Saraburi provinces in the future.

(from Chaloem Maha Nakhon) (from Chaloem Maha Nakhon) (From Si Rat) (To Si Rat)