Here is a nice article briefly discussing the evolution of transport strategy planning that have led to local transport plans:
Gleave, J. (2019) The changing role of transport strategy, Transport Futures, https://transportfutures.co/the-changing-role-of-transport-strategy-598fce17e9e9 [Last accessed: 8/24/2019].
More importantly, there is a very good discussion here of the recent developments and the need to change approaches in order to become more effective at the local level. The article explains that there should be an appreciation of the availability of resources including tools that allow people to be more engaged or able to participate in the planning process for their cities, municipalities or communities.