 In 1916, the passing loop was used by one pair of passenger trains in the evening, with an extra down train (toward Amlwch) making seven down and six up trains per day.The railmotor train's services had grown to 24 single trips between Gaerwen/Holland Arms and Llangefni/Red Wharf Bay.The continuing shortages of World War I meant that in January 1917 many passenger services were to be cut to give more resources to the war effort.