3: Liège – Maastricht (Developed with signs) 008800 4 60.5 60.5 60.5 60.5 60.9 60.5 60.5 60.5 60.6 61 62.8 58.6 59.6 59.9 59.8 59 60.5 61.2 61.4 60.6 60.1 65 64 63.1 61.9 62.1 61.5 62.4 63.2 62.8 58.9 61.4 61.8 57.8 68.6 58.7 57.8 56.3 56.6 59.2 58.6 59 58.8 56.2 57.3 58 58.2 56.4 56.4 55.3 54.7 54.7 54.3 55.4 54.3 54.2 53.3 53.5 53.9 54.5 53.6 53.7 53.8 55.5 54.6 54.5 54.5 55.5 55.6 55 54.7 53.3 52.5 53.2 52 53.4 53.2 51.4 52.3 49.3 51 49.5 49.1 48.2 51 49.7 50.8 50.9 50.6 50.1 50.3 50.4 50.6 50.6 52 51.5 48.8 49.9 51.5 51.5 57.7 54.6 56.5 47.2 51 62 57