CARL Source CMMS at the heart of maintenance performance for the M TAG network

A key player in mobility in the Grenoble area, M’TAG provides more than 87 million trips each year across 62 municipalities of the metropolitan area, serving a population of 552,500 .

Behind this daily performance lies an invisible yet essential requirement: Maintenance, managed since 2010 using the CARL Source CMMS.

Precision maintenance,
essential for reliable public transportation

Behind the scenes of the Grenoble network, M TAG orchestrates a finely tuned operation: 260 buses, 103 trams, 53 km of tracks, and thousands of pieces of equipment must all function
flawlessly.
To ensure this reliability, 172 maintenance workers work day and night to safeguard the network’s safety, regularity, and performance.

In this highly regulated sector, prevention is a top priority: biannual technical inspections of rolling stock, brakes system checks in compliance with STRMTG (Technical Service for Ski Lifts and Guided Transport) standards, maintenance of fixed installations, buildings, electrical substations, etc.

To manage this complexity, M TAG relies on CARL Source, which has become the digital hub for maintenance performance.

CARL Source’s integrated management: the power of prevention

“The main advantage of CARL Source is the creation of intervention plans that incorporate all the manufacturers” recommendations,” emphasizes Emmanuel Ollieric, Operations Manager in the Maintenance Methods department.

The CMMS response to public transportation business requirements

In terms of rolling stock, M TAG manages more than 6,600 work intervention plans and 1,300 preventive maintenance tasks, ensuring complete traceability, from engine oil changes to air conditioning systems, to scheduled or usage-triggered checks.

And CMMS is not limited to rolling stock. Fixed installations (tracks, electrical substations, generators, etc.) are also integrated into CARL Source, with 520 work intervention plans and 780 preventive maintenance tasks, including 230 regulatory ones.

A CMMS connected to the PCC for increased responsiveness

Connected to the Centralized Control Station, the CMMS receives reports directly from drivers: incidents, breakdowns, acts of vandalism, etc. Alerts are automatically imported into CARL Source, converted into work requests, and assigned to one of 46 field agents.
The result: unprecedented responsiveness and seamless coordination between operations and maintenance teams.

Simplified regulatory maintenance

With the Control S module, approved organizations now enter their inspection reports directly into the CMMS.
Corrective actions are generated and tracked automatically, ensuring simple, continuous maintenance that complies with ISO 9001, 14001, and 18001 certifications.

Anticipate to better control: optimized inventory management

More than 14,000 items are tracked in CARL Source. Thanks to forecasts based on contingency plans, needs are anticipated six months in advance:

no critical shortages,

reduced supply times,

and greater budgetary.

M TAG in figures

It also includes…

920 drivers – 83 stations, 37 electrical substations, 620 ticket validation terminals – 3 workshops (Eybens, Sassenage, Gières).

CARL Source CMMS at M’TAG: a lever for collective performance

At M TAG, CARL Source has become the backbone of technical and budgetary performance.

Clear budgetary outlook

Shared by all departments—management, finance, accounting, and field teams—the CMMS provides a consolidated, real-time view of the entire maintenance cycle: intervention, ordering, receipt, replenishment, invoicing, etc.,
all interfaced with the ERP. A true decision-making tool, CARL Source allows you to accurately track maintenance costs and make the right decisions about investments.

A “tailor-made” CMMS for each department

Each stakeholder has personalized dashboards and decision-making indicators to effectively manage preventive, corrective, or regulatory operations.
Managers gain agility thanks to automated planning and optimized scheduling, which improves resource management.
The result: smoother, faster, and better-structured maintenance.

Continuous improvement as a driving force

” With CARL Source, we are placing M TAG on a path of continuous improvement. We are creating clear benchmarks, sharing data, and co-developing solutions with users to industrialize our processes and enhance maintenance performance.”
Anouar Daira, IT Manager and project leader.

A constantly evolving project

And the story continues: after deploying CARL Touch, the mobile version of the CMMS tested for inventory management, M TAG is now planning to equip field agents with tablets, a new step towards even more connected and autonomous maintenance.

Our CMMS/EAM solution for rolling stock, fixed and linear installations: CARL Source Transport

CARL Source Transport is our CMMS solution dedicated to the transport sector. It has been designed to guarantee the best possible operating conditions for the resources provided (rolling stock, fixed installations, linear assets). It enables you to structure your fleet, guarantee equipment availability, passenger and staff safety, monitor your activity in real time, optimize costs, and manage your contracts while reconciling quality and budgetary control. Designed in partnership with major players in the industry, this solution helps you to meet the new constraints of the transport sector.

CARL Source Transport | CMMS software dedicated to the transportation sector

Benefits at M TAG

Software tailored to the requirements of the public transport industry.

Integrated PCC/CMMS process.

Simplified monitoring of 730 preventive and
regulatory checks.

Optimized inventory management.

Detailed consolidation of maintenance activities.

Business decision-making indicators.