Teesside mainly associated with the local petrochemical, chemical and steel processing industries. The port is an important piece of logistical infrastructure for the NEPIC cluster of process companies. Teesside continues to be used locally to refer the entire urban area and the name can still be seen in the following uses: It has also been adopted for various other purposes as a synonym for the former county of Cleveland. It is common to see Teesside spelled incorrectly as "Teeside", with a single 's'. Teesside Teesside () is the conurbation in the north east of England around the urban centre of Middlesbrough
Teesside Airport railway station South Junction; it was opened by British Rail on 3 October 1971. There are two platforms, each long enough for a four-coach train. The airport changed its name to Durham Tees Valley Airport in 2004, however, the station's name was not updated. In 2007, the train operating company Northern erected new signs reading "Teesside Airport", replacing previous signs which had used a hyphen in "Tees-side". National Rail now also lists the station as "Teesside Airport". In December 2017 it was announced by Durham Tees Valley Airport (DTVA) that the footbridge and eastbound platform would be closed to save DTVA having