A smarter future for your passenger trains

At Quester Tangent we are all passenger rail experts. For many decades, we’ve been making new and legacy fleets smarter and more connected to help train manufacturers and transit authorities work smarter. Your trains will get built faster. Your fleets will run on time, more reliably, and with a better passenger experience.

Our unique, modular ecosystem unifies:

  • Trainwise® onboard train control and monitoring system (TCMS) and passenger information system (PIS)
  • Fleetwise® wayside enterprise fleet management system (EFMS)

Improving performance at every stage of the lifecycle has made Quester Tangent a preferred partner with train builders and the majority of large transit authorities and operators across North America. Here’s how we can do the same for you.

A fleet-wide enterprise ecosystem

Helping you work smarter

Quester Tangent manufactures, supplies, and integrates industry-leading passenger train technologies that adapt perfectly to the requirements of new train build projects or midlife renewal of existing fleets. Onboard electronics and networks, wayside connectivity, and fleet-wide information systems are all designed to help your teams work smarter.

Train manufacturers will fast-track production using integrated Trainwise TCMS and PIS technology tailored to the unique needs of each project. Share efficient design and diagnostic tools to meet compliance, achieve the highest quality, and lower warranty costs.

Transit authorities and operators use Fleetwise EFMS to connect in real-time from the wayside to the onboard Trainwise TCMS and PIS of every train in the fleet. Keep passengers better informed and secure, while enterprise-wide insights and collaboration help improve on-time performance, optimize availability and state-of-good-repair, and lower maintenance costs.

Quester Tangent Industry Firsts

Enabling success through innovation

The unique Quester Tangent vision for a unified, modular enterprise fleet management ecosystem has been realized through many innovations that benefit you in many ways.

Train manufacturers acquire an integrated solution from a single vendor that simplifies design and onboard networking. This improves the efficiency of project delivery while lowering costs and integration/delivery risk.

Transit authorities and operators share data more easily across teams and simplify system updates, while a scalable architecture with extended capacity helps extend service life by adapting to future operational and passenger needs

Trainwise TCMS introduced third-party subsystem compatibility and connectivity that adapts to any new or existing train equipment.

Introduced some of the earliest onboard train monitoring devices to use embedded microprocessors, improving measurement accuracy and functionality.

Trainwise PIS was the first to enable smooth integration with TCMS and EFMS, helping operations and maintenance teams improve efficiency.

One of the first systems to offer real-time, wireless connectivity between the wayside and onboard TCMS, Fleetwise EFMS enabled fleet-wide access to operational status and diagnostics.

First company to adopt Ethernet-enabled TCMS and PIS, enabling higher network speeds, greater data bandwidth, and simplified wiring.

The first browser-based display, simplifying train drivers’ access and understanding of a greater range of train systems information.

First company to support industry-standard TRDP IP-based train networking protocols, CEN technology for improved digital audio quality, and Ethernet ring network topology to support higher fault tolerance and simpler point-to-point wiring.

The first company to introduce comprehensive pre-factory validation, testing the integrated interoperability of the TCMS, networks, and all connected, multi-vendor subsystem equipment.

Committing to performance

Quester Tangent delivers solutions that exceed expectations in helping enable on-time service and operational efficiency, enhance passenger satisfaction, and extend train fleet service life. We achieve this through our commitments.

Exceptional Expertise

We are considered a trusted, top supplier with more than two decades of passenger train experience and thousands of units in revenue service with major transit authorities. We provide end-to-end hardware and software design, manufacturing, project management, and turnkey delivery with integration and in-house engineering services for all types of train networks.

Highest Quality

Our service-proven components and systems have superior reliability and are compliant with stringent rail industry requirements while being flexible enough to meet or exceed the extended service life of trains. Systems are pre-validated in our state-of-the-art ISO9001 quality-certified factory.

Risk Reduction

We closely collaborate with consultants and transit authorities to clearly define needs and advise them on technology options before project tenders are released. We then reduce technical and contractual risks for rolling stock manufacturers by delivering all aspects of the project scope, ensuring consistent design, production, integration, and on-time/on-budget delivery.

Lifecycle Support

We help ensure the greatest longevity and minimized costs for fleet equipment through our Total TrainLife Care™ 20-year guarantee of service continuity. Lower your total cost of ownership by reducing warranty costs, maximizing lifespan, and getting early notifications and a defined timeline and action plan for resolving end-of-life issues.