sentences:  On the Midland Main Line new platforms would be built at Hendon and at Cricklewood and West Hampstead, while the Hendon service could also call at the planned new station for Thameslink services at Brent Cross/Staples Corner.The West Hampstead branch would be complete by 2026 and the Hendon branch by 2029 with 4 trains per hour on each branch end.The project's benefit-to-cost ratio is estimated to be in excess of 50