LTK was involved with the effort to modernize and expand MBTA’s Orient Heights Facilities. The firm’s work on this project began in 2000 with engineering design and continued in 2001 with construction management. The facilities rehabilitation project is in preparation for a new fleet of vehicles. LTK served as industrial designer for the facility with duties that included planning the renovation.
Staff members reviewed all related contractor submittals (drawings, calculations, technical documents, etc.). LTK had responsibilities for changes to the dc traction system in the yard tracks and track, which lead to the facility. The project objectives were to enlarge the service and inspection capability and increase the productivity of the repair activities in order to accommodate the anticipated increase in car fleet. The industrial equipment modernization included a wheel truing machine, car hoist systems, roof level platforms, modern truck repair area, new overhead cranes and improved body repair area. In addition, renovation was done to the existing train washer to include a wash water recycle system and a complete modernization of the facility infrastructure, including overhead catenary systems (OCS).
The expansions included a separate MOW Base to centralize and coordinate track, electric traction and signaling maintenance. The entire infrastructure (utility service, sewer, electrical, etc.) of the facility was renovated. The office facilities were expanded, and a new lubrication distribution room, elevator and storage space were added.
Wash Water Recycle System and New Oil Water Separator
The existing train washer equipment was up-graded in 1993; however, there was a heavy carry-out of the rinse water on the east end of the facility. To eliminate this problem, LTK recommended a small expansion of the train wash shed to allow for the installation of a water stripper. A water recirculating and filter system also was added.
The existing overhead cranes, which where installed in the mid-1950s, were rehabilitated to improve safety conditions, up-graded to meet the present codes and converted to operate on 480 volts. New overhead cranes, one 6-ton and one 12-ton, were installed in the car hoist area and on the wheel truing track.
Because of increased patronage on the Blue Line, MBTA increased the train length to six cars. This necessitated that the daily inspection and the report tracks portion of the building be expanded. The trains routinely receive interior cleaning on the train wash track during the night shift. Both areas of the building that provide these functions were enlarged to accommodate the six car trains.
Wheel Truing Machine
The installation of an underfloor wheel lathe eliminated the need to remove the wheels and transport them to other locations to be reprofiled. To accomplish this, additional construction was done to provide an expansion along with new track and turnout on the east end of the facility.
Car Hoist &Truck Repair Hoist
The existing facility had only one car hoist system capable of lifting a married pair; this hydraulic hoist system had deteriorated as a result of the damp environmental conditions that exist in the deep pit. Two new shallow pit electric screw hoist systems were installed in a two-track expansion on the east end of the facility to increase the reliability and productivity of this maintenance function. To increase the productivity and improve the overall working conditions, two electric screw truck repair hoists were installed adjacent to the car hoist system. To further increase, the productivity in the car hoist and truck repair functions six turntables were installed to allow manipulation of the trucks from the car hoists to the truck repair position and to the adjacent wheel-truing machine, without the use of the overhead cranes.
The construction of a MOW facility and associated track in the area inside the existing loop track was planned. This new facility was designed to centralize all of the functions that are required for this group to accomplish their maintenance tasks and greatly improve their productivity and preparation for maintenance program work.