Line S3 is functionally positioned as a rapid rail transit channel connecting Linhai's downtown area and Taizhou's downtown area, connecting important transportation nodes such as Linhai Railway Station, Linhai South Railway Station, and Taizhou Railway Station. The M line is mainly a general rail line serving the "three districts and two cities". The function of M1 line is to connect the east-west rail transit line of Huangyan City and Jiaojiang City; the function of line M2 is the east-west rail transit line connecting Taizhou West Station, Huangyan City, Luqiao City,
Taizhou Airport, and Taizhou Bay New District; the function of M3 line is It is positioned as a north-south rail transit line connecting Jiangbei New District, Jiaojiang District,
Luqiao District, and Wenling City; the function of M4 line is to connect Huangyan District, Jianyang Lake, The rail transit line of Luqiao City and Taizhou Airport; the M5 line is functionally positioned as an east-west rail transit line within Wenling City, connecting Wenling Eastern New District, Ruoheng Town, Wenling City, Wenling Railway Station, Daxi Town, etc. ==References==