There is a widespread belief that reform of minimum parking requirements requires excellent public transport. We see this in recent parking reform debates in US cities, such as Portland Seattle and Washington, DC for example.If eliminating parking minimums actually FORCED parking closures and low-parking development, then maybe this link with public transport would make sense.But reform of parking requirements is NOT about preventing developers from providing parking ! It merely ALLOWS them to choose how much parking they supply. In locations where they see the need, they will keep supplying plentiful parking.Reform of parking minimums DOES require on-street and other public parking to be well managed. This is to ensure developers and their customers know in advance that free-riding on that resource will be limited and/or come at a cost.The results in terms of parking supply will vary from place to place, and transit will be a factor in that. But parking minimums are unnecessary even far from public transport.In fact, parking minimums reform does not even require reduced parking demand! Reform of minimum parking requirements can be done anywhere!So let me repeat: reform of parking minimums simply does not require excellent public transport.What about all of the spillover problems? What about conflict with existing residents and retailers? Surely there are pre-requisites that need to be in place before eliminating or easing parking minimums? Let's explore the issue.Certainly, every community needs adequate control over nuisance parking. But that really should be obvious. If your community lacks parking enforcement capacity then no amount of off-street supply will eliminate on-street chaos without on-street enforcement. You will have on-street chaos with or without minimum parking requirements for off-street parking, as the situations in many cities in South Asia and Southeast Asia demonstrate.Even better than merely enforcing against nuisance parking is to manage on-street and public parking efficiently, with responsive pricing . This should be enough to send the right signals to developers and their potential customers, so everyone knows the parking bottom line.But we still haven't dealt with the political obstacles confronting reform of parking minimums. Surely, good public transport is essential to overcoming those obstacles? Well no.Certainly, enforcement and good management are not enough. Yes, more is needed to allay the fears of existing locals over parking reform. But not necessarily better transit service. Donald Shoup says parking minimums can be scrapped if we can ALSOa) price on-street parking rationally, ANDb) make the process attractive to locals via Parking Benefit Districts We have to not only neutralise spillover as a problem but also work to make the new pricing welcomed by locals. Adaptive Parking is similar. It suggests that it is easier to "relax" about parking supply if we ALSO make other complementary reforms:- Share! (make most parking open to the public),- Price! (to avoid parking queues and searching),- Sweeten! (sweeten the deal for relevant existing local stakeholders),- Relax! (easier now to not worry about parking supply),- Choice! (make the parking market work better by enhancing choices and choice making).But something else is hidden in the Shoupista and Adaptive Parking points above. They both imply (indirectly) that WALKABILITY is important for parking minimums reform.It is much easier to relax about off-street parking supply in " park-once districts " where any end-destination is served by a range of parking options within walking distance, not just by on-site parking . This is the point of Adaptive Parking's preference for public not private parking . And we need walkability to make it easy to walk between parking options and destinations. A park-once district requires walkability.But don't forget that even walkability and park-once districts are not really essential. They are helpful and they ease the politics. They make it less crucial for developers to be accurate in guessing how much parking each site needs.But even without walkability and public parking, there is still no real need for parking minimums.