Frankfurt / Main (dpa) - Thousands of demonstrators want to enter the first public day of the International Motor Show in Frankfurt for a rapid turn to climate-friendly mobility. The police today queue for around 20,000 participants at a rally in front of the exhibition center. The demonstrators will arrive partly on foot, partly by bicycle. Urban traffic is expected to be severely handicapped. The police advise drivers to bypass the city far or to change to subways and S-Bahn.