after the war, ridership stabilized at 1.7 million. at first the company operated with 30-minute headways, using trailers during the summer and in rush hour. introducing 15-minute headways could not be done until six trams were available; so after the rebuilding of a trailer to a tram in 1950, the increased frequency was introduced. during the 1950s, the amount of recreational travel to lian decreased, but this was compensated by increased traffic from new housing built along the line. by 1955, the commuter ridership exceeded the recreational ridership.