Fees/Subsidies points system

[robinef]

Is your feature request related to a problem? Please describe.

As already spotted earlier (ex: recommended parking vs enforced), in Europe, things are less enforceable than in US.
We would like to propose a way to open rate_amount to non direct financial penalties.

Describe the solution you'd like

Ideally if policy could be completed by a

Name	Type	Required / Optional	Description
currency	string	optional	An ISO 4217 Alphabetic Currency Code representing the currency of all Rules of type rate OR "points" that refers to a non-monetary system

Is this a breaking change

• No, not breaking
  It's an extension of an existing field, previous version will consider currency by default

Impacted Spec

For which spec is this feature being requested?

• policy

Describe alternatives you've considered

Using a non used currency from the offical ISO list. But API are made for robot so they will not understand that concept of "fake" currency

Additional context

This is for European city that would like to apply a reward program based on policy compliance with direct impact on fleet cap size but non financial because it's not part of the operating licence and could not be applied.

[robinef]

@marie-x, we did not had time to discuss that in the last. I will be happy to get your feedback.

[schnuerle]

Per our working group meeting, if someone would like to make a PR to add a new optional field to accommodate this (instead of changing the existing field from currency to string), then this could be included in 1.2 if done within the next week. Otherwise we can talk about it in 2.0 when we revisit Policy and can add breaking changes.

[jean-populus]

Is this still a pressing issue we want to address or is it ok to close it for now?