"CEMMS" is an online multi-agency monitoring and maintenance management system. Click on the CEMMS logo for more information

CEMMS - "Designed by Traffic Engineers for Traffic Engineers"

24X7 Maintenance Services

Providing nationwide cover, our engineers are on-call 24 / 7 / 365 , to respond to systems incidents at our contracted sites. We receive and correlate alerts, by phone or automatically using our own in-house developed Carra Event Management and Maintenance System (CEMMS), to monitor and respond to automated event on 24-hour basis and provide on-site and remote maintenance engineering. 



Using the Carra Maintenance Management Method (CMMM) and applying "Lean maintenance methodology", we provide structured preventative maintenance to maximise the serviceability of a wide range of equipment such as ANPR camera technologies, tolling systems , Electric Vehicle chargers and a wide variety of traffic-related hardware and software. 


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Carra's engineering team includes fully trained ITS Engineers and Electricians who are certified for health and safety, traffic management, EV charging systems and tolling systems. Carrying out a range of comprehensive maintenance tasks across the country, we pride ourselves on delivering within response times thus ensuring the prolonged life and reliability of your systems.

Attached Documents

PDF icon M50 Roadside Equipment case study PDF (M50_Roadside_Equipment_Case_Study_-_v1.0.pdf | 293 kB)


PDF icon M50 Backoffice Maintenance Case Study (M50_Back_Office_case_study_-_v1.0.pdf | 276 kB)


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