The Ōmiya Route (大宮線, Ōmiya-sen), signed as Route S5, is one of the five routes of the Shuto Expressway system serving the Greater Tokyo Area that are located within Saitama Prefecture. The 8.2-kilometer (5.1 mi) long radial highway runs north from Bijogi Junction in Toda to Yono Junction in the city of Saitama. It primarily connects the northwestern part of Tokyo and the Tokyo Gaikan Expressway to Saitama and the Saitama Shintoshin Route which serves the central part of that city.