SUSTRANS, the UK engineering charity which created the 10,000-mile National Cycle Network, celebrates its 30th anniversary on Saturday, July 7, with a party in Castle Park, Bristol. The pioneering transport group started out as CYCLEBAG ? British Action Group ? in 1977.

Sustrans founder John Grimshaw, its chief engineer and managing director, is a civil engineer who built roads and could not understand why cyclists and pedestrians needs were hardly ever considered.

He determined to do something about it.

Sustrans was created to provide cyclists and pedestrians with a transport network, which addressed their needs. Grimshaw first targeted disused railway lines for conversion to cycle and walking paths.

Their work has grown and extended to developing a network of quiet roads to link the traffic free routes.

Grimshaw's dream of a national network won Millennium lottery backing in 2000.

Sustrans also pioneered Safe Routes to Schools.

Saturday?s celebrations will include music, face painting, pedal powered machines, a bar and food stalls. Joining the party will be 150 riders who have completed the Sustrans Channel Challenge.

Art is on the agenda, too, with Rose Popay, fresh from performing at John?s Bikes on Walcot Street, Bath, looking for help in creating an interactive artwork.

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Keith Bingham joined the Cycling Weekly team in the summer of 1971, and retired in 2011. During his time, he covered numerous Tours de France, Milk Races and everything in-between. He was well known for his long-running 'Bikewatch' column, and played a pivotal role in fighting for the future of once at-threat cycling venues such as Hog Hill and Herne Hill Velodrome.