Essentially doing people's jobs for them, but more effectively. Some of these tactics can also yield useful information, and give campaigners an idea of the difficulties that decision-makers and officials face. They may be used to challenge official practices and ultimately stimulate action.
Circulating a questionnaire can provide you with ammunition and evidence to support your arguments and also yield useful information about attitudes to transport, why people do or do not cycle, and so on.
Doing the work of council officers or presenting a company with a reasonable plan or policy that they can adopt can be very effective. The policy can be as detailed or skeletal as your resources permit.