Why so many broken buildings in Toulouse?

In Toulouse, following the appearance of cracks and the risk of the collapse of buildings, 18 decrees of endangerment have been published since the beginning of the year. Knowing that the works can weaken the construction of the buildings, the inhabitants wonder about those of the new metro line. The operator of the future line recognizes in part the facts and seeks to reassure. According to a recent diagnosis, the city would have 150 buildings …