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on the whole world.

Our competencies are being applied all over the world – from Brazil to Vietnam, from Australia to Norway. More than 5,000 projects to date. As different as requirements may be, our customers always benefit from our wide portfolio and our networked services.

Operational Expenditure (Opex) Estimate Services for a new mass transit system in Quatar

In Doha (Qatar), projects are under way to improve public transport.

To this end, a metro network, a new tram system (Lusail) and a new rail network (passenger and goods transport) are being planned and built. In this connection, SIGNON, as subcontractor of Arcadis Middle East, is preparing an analytical operational expenditure estimate of the operating and maintenance costs for the next 20 years. The estimate is prepared separately for each of the three rail systems mentioned above and integrated into a specially developed costing model. The cost estimates are based on processes and requirements specified by customer QatarRail as well as on international benchmarks.

Improving power supply security: Tram Vienna

The purpose of the project - linking up to a previous network study - was to develop and test additional possibilities to improve electricity supply security from the system which powers the entire Vienna tram network, in particular with regard to energy efficiency.

In particular, the effect of omitting very long DC cables on the quality of maintaining the voltage and on power demand was investigated in connection with their replacement by new small-scale rectifier substations. SIGNON had been involved at the project start in multiple subprojects. For example:

  • Qualitative comparison of peak traffic times (morning rush hour) for undisrupted operation of the optimized and a newly defined switching status for the entire tram network
  • Quantitative comparison of the entire daily traffic volume (24 hours) of both of these switching statuses for undisrupted operation for the entire tram network
  • Testing short-circuit safety

India: Metering and power consumption calculations for Metro Bangalore

Namma Metro, better known as Bangalore Metro, is a rapid transit rail system for the city of Bangalore, Karnataka province, India.

The agency responsible for its implementation is the Bangalore Metro Rail Corporation Ltd (BMRCL). Bangalore Metro has six lines, 81 stations and a network of 114.39 km. About 41,390 passengers use the Metro every day. SIGNON prepared the power supply calculation for the first phase of Bangalore Metro network, consisting of an East-West corridor and a North-South corridor. In addition, we also checked the power supply layout in regard to the expansion needs generated by the train operations.
Evaluations were made for:

  • Voltage drop in the catenary system, calculation of the minimum and mean useful voltage
  • Minimum line voltages in accordance to EN 50163
  • Maximum rail potential (EN 50122-1)
  • Traction substation loads, feeder and return feeder cables
  • Detection of short circuit current