David Sidebottom, director at the independent watchdog Transport Focus, said:
"Following this unacceptable performance West Midlands passengers sent a clear signal of disapproval in our latest survey with satisfaction dropping by 11 percentage points to its lowest score in 10 years.
“Passengers tell us that their biggest priority is rail services they can rely on to get them to work on time, or home at a reasonable hour.
“This investment will help take some of the sting out of the frustration many passengers have felt as a result of problems created by the timetable chaos and poor performance by the rail industry.
"It’s now important that West Midlands Trains actively encourages passengers to claim compensation and makes it quick and easy to do so."
