The extension project of PT Kereta Cepat Indonesia China (KCIC) Whoosh to Surabaya is in the feasibility study phase. This project was included in the network extension program in the Decree of the Ministry of Transportation (KM) Number KM 296 Year 2020 regarding the National Railway Main Plan. Based on the study from PT KCIC, there are three alternative extension routes considered, namely south, central north routes.