route_id,route_name,line_id,direction_type
M1,Nation - Charles de Gaulle,M1,inbound
M1_R,Charles de Gaulle - Nation,M1,outbound
B42,Gare de Lyon - Montparnasse,B42,forward
B42_R,Montparnasse - Gare de Lyon,B42,backward
RERA,RER A,RERA,inbound
RERA_Bus_R,RER A,RERA,outbound