Car parking charges

Yes this is still rumbling on, but in this case I want to expand a point I made regarding how it costs 50p for two hours in Kidderminster, but 70p in Stourport and £1 in Bewdley. You have a set scale charge:

upto:
half-hour - Free
1 hour - £50p
2 hours - £1
3 hours - £2
4 hours - £3
Over 4 hours : £4

You then apply the required time scales to the car-park in question. So for Vale Road where there's a balance between short term and long-term you cross out the half-hour and the 3 and 4 hour tariffs leaving

1 hour - £50p
2 hours - £1
Over 4 hours : £4

For a short-term such as Raven Street:

half-hour - Free
1 hour - £50p
2 hours - £1

Now you know exactly how much it will cost in any car-park in the district and if the length of time you want to spend there isn't shown you shouldn't be parking there. From the council's point of view set boards can be created and the non-applying charges covered, and they can influence parking flow by assigning each tariff to a relevant car-park and easily change and shift them to suit requirements. Anyone see any flaws?