recognized for his bravery by remaining at the controls when the collision was imminent, applying the air brakes, and attempting an emergency stop by putting the streetcar into reverse with full power applied. Some witnesses reported seeing a blue flame shoot from the rear of streetcar No. 12 just prior to the collision, and a witness observed Ostrander reaching for the motor breaker switch to reset it. Officials speculated that Ostrander could have tripped his streetcar's electric circuit by performing an emergency stop while the air brakes were still applied. Fatal collision in north Edmonton Another Motorman was killed on Friday, August 4, 1944 just before 7:00 AM. Motorman William McKinnon was driving Streetcar 34 north on 124 Street, while serving the Calder route, and when his tram was near 114 Avenue it rear-ended Streetcar 17, which was on the World War Two-era "Aircraft Loop" that served local aviation facilities. It was speculated by officials that McKinnon, a new Motorman who was involved in another collision earlier that summer, did not notice the streetcar ahead of him. Both streetcars had a large number of passengers, but nobody else was seriously injured. The force of the collision sent a button from one of the streetcars onto a porch around away. McKinnon was pinned under heavy debris from both streetcars, including his controller. Onlookers and passengers tried to free him, but it took street railway employees using large jacks, and a crane contributed by members of a nearby Jesuit college, until 7:30 AM to release him from the wreckage. McKinnon was conscious for the duration of his rescue, and begged nearby people to get him out of the wreckage. However, he died in hospital just over five hours after the collision. Lines ERR lines were numbered, and also colour-coded in order to help passengers navigate a system that was constantly adding and changing lines. The following list shows the routes in service during the ERR's peak in the early 1930s: Rolling stock The ERR purchased passenger streetcars from three manufacturers over the years, with the final batch arriving in 1930. The ERR also owned a number of specialty cars, such as line maintenance cars, sweeper cars, a track grinding car, and a library car which served residents in remote neighbourhoods. Some of these cars were manufactured in the Cromdale car barn by the ERR's own staff. Passenger cars Work and specialty cars