This study, published in 2006, has provided the basis for Legible London. It found that:
Walking can lead to major benefits for the transport system, economy and public health
Predictable, consistent and authoritative public information is the key to building pedestrians' confidence
The report also found that the many pedestrian signage systems in central London are incoherent and often confusing. As a result, many people rely on the Tube map to find their way around above ground. Although the Tube map design is ideal for helping people complete their journey on the Underground, it isn't designed for walking and doesn't represent the exact locations of stations, or distances between destinations.