This is probably more efficient than most people recognize. Congrats on doing the right thing. I hope you are also doing other things like encouraging staff and clients to avoid driving. e.g. tell people what the nearest transit stop is. e.g. if you provide staff parking you should levy a charge for it and put that money toward offering staff a transit pass or a subsidy for buying a bicycle.
This is probably more efficient than most people recognize. Congrats on doing the right thing. I hope you are also doing other things like encouraging staff and clients to avoid driving. e.g. tell people what the nearest transit stop is. e.g. if you provide staff parking you should levy a charge for it and put that money toward offering staff a transit pass or a subsidy for buying a bicycle.