As the title says - what have your school or PTA or local authority or all the above done which has actually made a difference to the sheer hell that is the school run and safety around the school in the mornings and afternoons?
I'm aware that on our PTA we're fighting a losing battle but I don't like to go down without a fight. 
Anything, however small, that has worked I'd love to hear. Our school are reluctant to start shaming people and handing out confrontational leaflets and things like that but I'm kind of at the stage that we've tried a lot of other things and i don't give a shiny fuck about offending people when kids are having to duck out the way of cars mounting pavements and things.
Equally what did you have high hopes for that fell flat on its face and why?
Why are people so fucking inconsiderate?
[that ones more rhetorical...]