Flood risk prevention perimeter by runoff – Production perimeter and flow/accumulation perimeter of the PLU-H of the Métropole de Lyon
Description
Production areas
It is an area initiating the production of runoff at the topographical points, which is not directly subject to risk but which aggravates it, by promoting the runoff of the waters, in particular due to the waterproofing of the soil linked to urbanisation.
Priority production areas, secondary production areas, and tertiary production areas are distinguished.
Attribute TYPEPLU = PRODUCTION ZONE & Subtype attribute = PRIORITY, priority production areas
Attribute TYPEPLU = PRODUCTION ZONE & Subtype attribute = SECONDARY, secondary production perimeters
Attribute TYPEPLU = PRODUCTION ZONE & Subtype attribute = TERTIARY, tertiary production scopes
Flow and accumulation perimeters:
Priority flow and accumulation perimeters are important for water resource management and flood risk prevention. They can house a particular fauna and flora that should be preserved.
Attribute TYPEPLU = ZONE EXPOSED & Subtype attribute = ZAP, priority perimeters
Attribute TYPEPLU = ZONE EXPOSED & Subtype attribute = SECONDARY COLIDING, secondary flow perimeters
Attribute TYPEPLU = ZONE EXPOSED & Subtype attribute = SECONDARY ACCUMULATION, secondary accumulation perimeters
To have an overall visibility of flood risks by runoff, associate the Flow Axis sheet.
Resources
| Name |
Format |
Description |
Link |
|
61 |
|
https://www.data.gouv.fr/fr/datasets/r/386855bf-90e1-4da8-a73a-2e5ab927193f |
|
8 |
|
https://www.data.gouv.fr/fr/datasets/r/af3eae55-e875-48f7-b583-e7c35633eb39 |
|
15 |
|
https://www.data.gouv.fr/fr/datasets/r/e6457c95-f6ad-42f1-9323-df122032c400 |