Polygons of areas exceeding the 24H weighted average noise exposure limit values of Charente land transport infrastructure expressed in Lden.
Weighting of the Lden indicator of the average sound level: 12 hours of the day (6:00-17:00); 4 hours evening (17:00-22h) with an increase of 5 dB; 8 hours at night (22h-6h) with an increase of 10 dB. These increases are representative of the discomfort experienced during these periods.
This zoning (CEREMA data aggregated by DDT Charente) is derived from a calculation method which gives approximate values and often higher than reality. In situ noise control can accurately determine the sound level to which a construction and its occupants can be exposed.
Build on reliable and scalable technology
FAQ
Frequently Asked Questions
Some basic informations about API Store ®.
Operation and development of APIs are currently fully funded by company Apitalks and its usage is for free.
Yes, you can.
All important information such as time of last update, license and other information are in response of each API call.
In case of major update that would not be compatible with previous version of API, we keep for 30 days both versions so you will have enough time to transfer to new version. We will inform you about the changes in advance by e-mail.