. Electric railway journal . o leave the car without assistance. Nearlyevery window of the car was broken and the woodwork was jammed. At the Board of Trade inquiry it was de-cided that the fact that the car had an upper deck was notresponsible for the accident. The general impression wasthat the car would have been overturned by the unusuallysevere wind even if it had been of the single-deck board made no new rules but suggested that wind-measuring instruments should be fitted in a suitable placeto give the tramway officers warning of high winds so thatthey could take the precaution
. Electric railway journal . o leave the car without assistance. Nearlyevery window of the car was broken and the woodwork was jammed. At the Board of Trade inquiry it was de-cided that the fact that the car had an upper deck was notresponsible for the accident. The general impression wasthat the car would have been overturned by the unusuallysevere wind even if it had been of the single-deck board made no new rules but suggested that wind-measuring instruments should be fitted in a suitable placeto give the tramway officers warning of high winds so thatthey could take the precaution of not running the cars inexposed positions. This car was operated on a 4-ft. gage,but a gage as narrow as 3 ft. 6 in. has been used elsewherefor double-deck cars. CLEVELAND TESTS ON THE ILLUMINATION OF CARS During 1911 and 1912 the Cleveland Railway conductedtests on three cars in all to determine the cost of illumina-tion by means of mazda lamps and carbon lamps. Thesetests demonstrated the economy of the metallic-filament. Fig. 1—Cleveland Lighting—Pian of 500-Type Car lamp, but in January, 1913, arrangements were made forthe luminometer tests hereinafter described in abstract. CONDITION OF TESTS. The tests were made on two 500-type monitor-deck cars,the plan view of which is shown in Fig. 1. The carbodies are finished in natural-cherry woodwork and haveceilings painted medium green. The seats are upholsteredin rattan. Car No. 537 was lighted with five 100-watt frosted-bowlmazda lamps in Holophane E-100 satin-finished reflectorsmounted in a special shade holder. The lamps weremounted in what is known as the H position. Anadditional 100-watt lamp is so wired in connectionwith a selector switch that it can be instantly connectedinto the circuit in case of failure of any one of the fivelamps regularly lighted. One circuit of 23-watt lampsprovided light for the front vestibule, destination signand headlight. Four of the 100-watt lamps were mountedon the upper-deck ceiling on
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