LTK has extensive experience in supporting transit operators with the specification, design, inspection, maintenance and operation of bus fleets, ranging from paratransit to conventional transit, articulated transit (including those used in Bus Rapid Transit systems), intercity and electric trolleybus vehicles. Our expertise covers vehicle structure; propulsion; transmission systems; auxiliary electric systems; door control; HVAC; lighting; vehicle interiors; and ADA compliance (including on-board ITS elements). We can help transit operators and other fleet owners define operating concepts/requirements, chose technologies, develop specifications and select vehicle suppliers. Post-selection, we can provide engineering, inspection, testing, acceptance and post-delivery support.

For electric trolleybus operators, LTK also provides traction power and Overhead Contact System (OCS) design services. Our proprietary software tools are used to simulate electric trolleybus networks, ensuring the compatibility of trolleybus performance, the operating plan and the underlying electrical network.

As transit operators, regional planning organizations and environmental agencies work to reduce emissions from conventional diesel-powered buses, we can assist with “greener” technologies, including:

  • Diesel fuel additives/substitutes to reduce emissions,
  • CNG bus propulsion systems
  • Hybrid bus propulsion systems
  • Electric trolleybuses

The Diesel Group within LTK's Vehicles Engineering practice monitors the latest federal diesel emission regulations as they apply to transit and rail applications of all types (buses, DMUs and locomotives).  At the same time, we monitor equipment and engine manufacturer efforts to comply with these regulations.

LTK’s vehicle engineers provide a wealth of structural design and specification services for bus procurements, including:  

  • Specification development,
  • Evaluation of manufacturers’ capabilities in terms of production capacity and quality
  • Assistance with the request for proposal process and bid evaluation,
  • On-site first article inspections, and
  • Warranty dispute resolution.

Once buses have been delivered, we provide support in terms of development of preventative maintenance programs, maintenance facility safety and regulatory compliance audits, and maintenance facility industrial design to support new fleets and new vehicle types. For buses that are presently in service, we support fleet operators with:

  • Fleet inspection and condition assessments,
  • Structural failure analysis,
  • On-going maintenance planning, including spare parts inventory management and
  • Mid-life overhaul planning and development.