Decision-makers should never forget that cyclists' behaviour is environment-friendly in the highest degree. It is also good for personal health. No expense should be spared in the planning and design of utterly superb cycleways [Fig 10.16]. Society should invest in facilities which persuade citizens to become 'green commuters'. There are many opportunities and few standard solutions. Much depends on the speeds and volumes of cars, trucks and cyclists. If 35% of journeys are to be made by cycle, then substantial expenditure is necessary. It can be reduced to 35% of the transport budget when the basic infrastructure is in place.