If yellow lines are installed then the people who live there cannot park outside their own houses if they have more than one car and a small drive which won't take more than one car on it. This would still have to be monitored by Traffic Wardens which costs money.
There is no simple solution to this problem which won't cost money to monitor it. How do you get rid of the selfish, ignorant drivers who only think of themselves when they are dropping their kids off?
I thought on the original design of the school that cars were to be allowed to access an area within the school grounds to enable the kids to be dropped off, this access was to be from Bowden Lane, I could be wrong on this.
I live near to the Catholic Church on Leigh Avenue and a similar problem occurs every Sunday morning, cars are parked outside people's houses all over that area and block the roads, the roads are not very wide with some bends and if an Ambulance or Fire Engine had to get through then there would be problems, again selfish drivers. I'm sure if somebody parked their car outside one of these peoples house they would be the first to complain.