Saitama Shintoshin Route
The Saitama Shintoshin Route, signed as Route S2, is one of the five routes of the Shuto Expressway system serving the Greater Tokyo Area that are located within Saitama Prefecture. The long radial highway runs east from Yono Junction in the western part of the city of Saitama to Saitama-minuma in the central part of the city. It primarily connects the central part of Saitama to the Ōmiya Route and, by extension, the Ikebukuro Route which connects it to the rest of the Shuto Expressway system and central Tokyo.
Route description
Route S2 route begins at Yono Junction where it meets the Shin-Ōmiya Bypass, signed as National Routes 16 and 17, in western Saitama as a continuation east for the Ōmiya Route. The expressway is a limited-access road, but is a two-lane expressway with only one travel lane in each direction. From this western terminus, it travels east towards central Saitama. Route S2 meets its eastern terminus at Saitama-minuma where it has an intersection with Saitama Prefecture Route 1.Much of the Saitama Shintoshin Route is carried through tunnels below Ōmiya and Saitama-Shintoshin stations, only the sections near the termini of the route are not underground.