We have an obvious north-south divide in Arlington County. One state highway uniquely crosses the entire county from north to south — Glebe Road, Route 120.
Traditionally, Arlington has planned along horizontal corridors including Route 50, Columbia Pike, Lee Highway, and Washington/Wilson Boulevard. This is likely because these major road arteries were designed to transport people from the suburbs of Virginia to Washington D.C. These arteries also happen to be in central Arlington and literally divide Arlington between north and south.