Readers respond to arguments over cyclists skipping red lights, with warnings about pedestrians and the limits of shared-space ideas.

Readers back London’s low-emission zone after a study linked it with better lung health in children, while urging wider action across the UK.

Dozens of groups say extreme summer weather shows why ministers should push harder on cleaner travel and freight policy.

A commentary on how London’s streets have become more confusing for everyone using them, from cyclists and drivers to pedestrians.