CREATE TABLE table_26374 ("Lines" CLOB, "Opening" FLOAT, "Traction" CLOB, "Length" CLOB, "Stations" FLOAT, "Route" CLOB, "Stops" FLOAT, "Travel time" CLOB)

Name the number of stations for 15 minutes travel time
SELECT COUNT("Stations") FROM table_26374 WHERE "Travel time" = '15 minutes'
SELECT COUNT("Stations") FROM "table_26374" WHERE "Travel time" = '15 minutes'