Local authorities
What to maintain first?
Every year a local authority chooses among roads, structures and networks. The budget covers only part of the list. The useful decision is what will cost the most if you wait.
France, Belgium, Switzerland, Luxembourg.
Crossing condition, use and risk on one map turns a list of requests into a programme you can explain to elected officials and to residents.
The same requirement appears on land. Where to build without exceeding the net-zero land-take quota, what to protect, which plot to acquire first: the choice has to be readable criterion by criterion, including in council.
Maintenance and investment
A ranked programme, not a pile of requests.
ZAN and land
Where to build, what to protect, which plot to buy first.
PCRS
Where the authority has produced a simplified street-body plan (PCRS), network operators must use it in DT-DICT replies since 1 Jan 2026.
Means. QGIS, PostGIS, the authority’s own data.

Decision Diagnostic
A short fixed scope. We name what costs money or blocks the work, and the first action to take.