The New Jersey Turnpike has five separate 12 foot lanes.
New Jersey Turnpike . The route divides into four roadways between exit 6 and exit 14 , with the inner lanes restricted to carrying only cars , and with the outer lanes for cars , trucks and buses . The Turnpike has 12 ft lanes , 10 ft shoulders , 13 rest areas named after notable residents of New Jersey , and unusual exit signage that was considered the pinnacle of highway building in the 1950s .