. Electric railway journal . SECTION OF TEMPLATE USED TO GIVE GROOVE FORWHEEL FLANGES the tendency to buckle or sag. These conditions requirefrequent repaving, and the cost for such maintenanceeasily exceeds the cost of maintaining pavement of thecontinuous type by at least 50 per cent. With the adventof the automobile there is less necessity for placingblocks along the edge of rails which previously wereconsidered necessary to aid the vehicular travel acrossthe tracks. The Penisular of San Jose, Cal., which is one ofthe lines associated with the Pacific Electric system, ^undertook the co
. Electric railway journal . SECTION OF TEMPLATE USED TO GIVE GROOVE FORWHEEL FLANGES the tendency to buckle or sag. These conditions requirefrequent repaving, and the cost for such maintenanceeasily exceeds the cost of maintaining pavement of thecontinuous type by at least 50 per cent. With the adventof the automobile there is less necessity for placingblocks along the edge of rails which previously wereconsidered necessary to aid the vehicular travel acrossthe tracks. The Penisular of San Jose, Cal., which is one ofthe lines associated with the Pacific Electric system, ^undertook the construction of its tracks on two of themost heavily traveled thoroughfares in San Jose. In1916 and 1918 6-in., 72-lb. T-rail was installed witha concrete face and Topeka wearing surface on onestreet, while on the other street a sheet asphalt sur-face was laid on the concrete. In both cases, the. SECTION OF ROADBED IN PAVED STREET WITHGIRDER RAIL SECTION OF ROADBED IN PAVED STREET v\ ITHT-RAIL AND BLOCKS January 17, 1920 Electric Railway Journal 159 paving blocks alongside of the rails were omitted. Theconstruction proved entirely satisfactory and at presentthe surfaces are still quite even. With this construction, in order to obtain auniform groove in the pavement surface for the treadof car vpheels a special template is used. A cross-sectionof this is shown herewith. The templates are madeof the hardest timber which it is possible to obtain, andthe usual length employed is 14 ft. to 16 ft. After thehot paving compound is spread in and around the rails,and crowned approximately I in., the template is putin place. As the steam roller passes over this the excessasphalt is forced away, thus giving the desired groovein the pavement next to the inside edge of the to the heavy action of the roller on the template,and the effect of heat and moisture from the hot asp
Size: 2690px × 929px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp