1. Fama Spa provided gaskets and connection systems for the excavation of the Red Line North in Doha. 2. Measurements of 294 joints showed an average gap of 0.4mm and offset of 1.4mm, below project specifications of 5mm and 10mm respectively. 3. The SmartBlock connection system minimized divergence effects while providing sufficient pull-out and shear strength, ensuring proper dimensioning.