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Vélodrome de Saint-Quentin-en-Yvelines, France

  • Vélodrome de Saint-Quentin-en-Yvelines, France
  • Vélodrome de Saint-Quentin-en-Yvelines, France
  • Lamp efficacy

    Lamp efficacy

    Ensuring the lamp efficiently converts electricity into light (lm/W).

  • Ballast classification

    Ballast classification

    Controlling the electricity supply to the lamp (Energy Efficiency Index).

  • Luminaire distribution

    Luminaire distribution

    Controlling light emission using optics which bend and shape the light to the correct location.

  • System efficacy

    System efficacy

    Combining optical and thermal control within the luminaire (luminaire lm/W).

  • Presence/absence detection

    Presence/absence detection

    Presence: Lights automatically turn on/off with movement. Absence: Lights automatically turn off and must be manually switched on.

  • Daylight detection

    Daylight detection

    Artificial lighting which responds to the natural light conditions.

  • Constant illuminance

    Constant illuminance

    A function designed to produce correct light levels for the duration of the maintenance period.

  • Task-scene setting

    Task-scene setting

    Allowing the user to set scenes and adapt the lighting to different tasks.

  • Timed off

    Timed off

    Automatic cut-off can be installed to turn all lights off during unoccupied hours.

  • Task lighting

    Task lighting

    Lighting task areas with the correct amount of light.

  • Zoning of lighting

    Zoning of lighting

    Lighting is zoned according to area use.

  • Maintenance schedule

    Maintenance schedule

    Maintenance must be performed in response to product age, performance and environment.

  • Waste light

    Waste light

    Eliminating waste light which does not hit the intended target.

  • Reflectance

    Reflectance

    Taking advantage of light which is reflected from the surface within the space.

  • Visible smart metering

    Visible smart metering

    Results of actions can be quickly seen as increased or decreased energy use to encourage responsible energy consumption.

Background

The Vélodrome de Saint-Quentin-en-Yvelines is a velodrome in Montigny-le-Bretonneux, France. Home to the French Cycling Federation, it was opened in 2014 and boasts an Olympic standard track which hosts the 2015 UCI Track Cycling World Championships.

At 3 000m², the central track area is fully modular and customisable. Measuring 250 meters long and 8 meters wide, it is the only one in the world with such dimensions. The velodrome can accommodate up to 2 700 people for all types of events.

Thorn was commissioned by returning customers Bouygues + SNEE to provide the track lighting based on an existing successful partnership with Thorn and the combination of the proposed solution and associated cost.

Lighting objective

There were two key lighting objectives for this state-of-the-art velodrome. Firstly, to provide the required illuminance with the best colour ambience and secondly, to ensure lighting makes the velodrome a welcoming home to the UCI Track Cycling World Championships. To meet competition and broadcasting standards, the required illuminance levels included 1 400 lux vertical illuminance to be maintained in the direction of the main camera, 4 000 lux vertical illuminance for the finish line, and 2 700 lux overall horizontal illuminance.

Lighting solution

Thorn’s Mundial 1KW floodlight was chosen for the velodrome. Mundial is a high power, high performance floodlight designed for all sport applications and large area illumination. In the case of main supply failure, Thorn’s PRT floodlights have also been installed to enable an instant restart.

Results and benefits

The parquet track’s high gloss protective film made the aiming of the floodlights in a way that would avoid reflection and glare in the direction of the cameras particularly challenging. Compared to the 2KW version however, the Mundial 1KW floodlight met all of required luminance levels while providing less glare to ensure comfort for spectators. What’s more, by using a greater number of smaller floodlights (260 in total), the track’s unique curves and dimensions are better illuminated. A mix of intensive and extensive optics and two switching levels have been used in order to adapt the lighting to the architecture and the different surfaces to be lit.

Key facts

- Thorn Mundial used for high power, high performance lighting
- A mix of intensive and extensive optics and two switching levels have been used in order to adapt the lighting to all requirements
- Provision of the required illuminance levels