Turkey has an extensive road network, with some dual backroads and also 3-lane highways. The route from Europe has been greatly improved by the Istanbul bypass and two Bosphorus bridges which lead to the Istanbul-Ankara express. Turkish road signs conform to the International Protocol on Road Signs, and their Highway Code is similar to Europe's. The fastest roads are the otoyols (multilane highways), linking Istanbul to several major cities.
The E-80, E-90 and Trans European Motorway (TEM) are the three main roads leading to Turkey from European borders. The main motorway from the Turkish border at Edirne straight through to Istanbul, Ankara and beyond is the E-80, closely paralleled by the somewhat smaller D-100. The route to Antalya follows the E-80 to Izmit and then heads south on the D-650.
Approximate driving times to Istanbul: From Ankara - 7 hours; from Antalya - 12 hours.