The European route E67 and the Estonian national road 4 are both forms of what?
Estonian national road 4:  The route follows the same path as the European route E67, also known as the Via Baltica. Estonian national road 4:  The highway starts in Tallinn. European route E67: European route E 67 is an E-road running from Prague in the Czech Republic to Helsinki in Finland by way of Poland, Lithuania, Latvia, and Estonia.
highway