The greenway between Langeais and Cinq-Mars-la-Pile has been developed by the departmental council and will be inaugurated in 2019. Running parallel to the departmental road for 2.7 km, it provides safe travel for pedestrians and cyclists between the two towns, for both residents and tourists.
It consists of photoluminescent markings that charge up with light during the day and release it throughout the night for ten hours: green dotted lateral lines perfectly delineate the track. Particularly useful in winter, when it gets dark fast.
LuminoKrom® lights up the greenway between Langeais and Cinq-Mars-la-Pile
The greenway between Langeais and Cinq-Mars-la-Pile, in the Indre-et-Loire region, is equipped with LuminoKrom® photoluminescent paint to enhance night-time visibility for cyclists and pedestrians. By capturing daylight and releasing it at night, our innovation improves user safety while limiting environmental impact. With no need for electric lighting, LuminoKrom® offers a sustainable and economical solution, perfectly suited to soft mobility infrastructures such as greenways.
The project, which is part of an ecological transition approach, aims to encourage safe night-time travel on this popular stretch of road. It illustrates the commitment of local authorities to adopting innovative technologies to enhance safety and promote environmentally-friendly mobility.
The Direction des routes et des mobilités is interested in innovations in the fields of safety, energy efficiency and eco-compatibility. It has therefore just experimented on this route with a technology first tested in Pessac (Gironde) in 2018. With this solution, which does not require the installation of poles or a network, the lighting envisaged at the start of the project has been abandoned due to its cost.
The Department's agents applied the paint, and the monitoring and maintenance of the greenway are carried out under an agreement between the communes and the Department, which guarantees the long-term future of the system. The Département will carry out counts to measure changes in the number of cyclists using the site.
LuminoKrom® in an article in La Nouvelle République
In an article published by La Nouvelle République, LuminoKrom® is highlighted for its application on the greenway between Langeais and Cinq-Mars-la-Pile. The article describes how our photoluminescent paint transforms road signage, guaranteeing better night-time visibility for cyclists and pedestrians, while eliminating the need for artificial lighting.
The article highlights the ecological and economic advantages of our technology, which enhances user safety in rural or poorly lit areas. This exemplary project could serve as a model for other communities wishing to adopt innovative and sustainable solutions for their soft mobility infrastructures. In this way, LuminoKrom® continues to demonstrate its potential to revolutionize signage for safer, greener mobility.
Photoluminescence is a physical process whereby a material absorbs photons from a light source and re-emits them. To achieve this, the body is subjected to radiation of varying intensity, which excites the electrons present in the substance. These electrons store the light, store the energy and release it when there is a total absence of light.
Thanks to photoluminescence, the substance can be recharged indefinitely by daylight or artificial lighting. Our LuminoKrom® photoluminescent paint exploits exactly this physical phenomenon.
What are the advantages of photoluminescence?
Installations marked with photoluminescent paint require no special maintenance or servicing. Only standard road maintenance is required.
What's more, this type of marking is totally autonomous, requiring no charge or power source. So it's an economical and sustainable solution.
How long does paint luminescence last?
The paint itself emits for a very long time. The most important parameter to take into account is the length of time its light emission is perceptible to the human eye.
In an outdoor environment devoid of any light, we consider that the eye can perceive light emission up to around 8 millicandela/m², i.e. after 10 hours of emission. If the environment presents light pollution (full moon, proximity of public lighting), this threshold will be raised and the duration of visibility will be shortened.
Indoors, in absolute darkness, the perception threshold is much lower, and you can observe the luminescence of our paint for over 12 hours.
What surfaces can LuminoKrom® paint be applied to?
Our LuminoKrom® paint range can be applied to a variety of substrates and materials. We offer different references to suit every circumstance, whether for indoor or outdoor marking, for example.
Our road and urban paint references are ideal for use on concrete, cement, bitumen and asphalt mixes. A waterborne version is also available for interior applications.Concernant les applications sur du métal, il faudra choisir notre peinture LuminoKrom® pour Métal.
Our luminescent paint is applied over a white primer, so you can apply LuminoKrom® to any surface where the white paint will adhere.