Hartlepool Borough Council is planning to axe nine lollipop patrols across town from April to save £32,000 as part of a wider £2.6m series of cuts.
While the full list has still to be published, three of the primary schools affected – Barnard Grove, Brougham and West View – are all part of the Ad Astra Academy Trust.
Its chair, Chris Simmons, has now written to the council to argue how the “astonishing” and “immensely disappointing” decision can be reversed.
In a letter to Councillor Shane Moore, who is the council leader, Mr Simmons said: “It beggars belief that the decision to cut this service comes at the same time that the council is planning to spend hundreds of thousands on large cultural events.
“The council has stated on numerous occasions in recent years, that its priorities, in terms of service users, are children and vulnerable adults. A position which we entirely support.
"The action you are currently proposing flies in the face of that statement.
“It is our belief that the school crossing patrol service should be fully protected as part of those priorities. The safety of children at all times is paramount.”
The council withdrew its beach lifeguard service to save £100,000 nearly two decades ago.
The letter continues: “I am sure that you are aware that some years ago the council withdrew its lifeguard service on local beaches, and that shortly afterwards a young boy was washed out to sea and lost his life at Seaton Carew. Subsequently the council reinstated the beach lifeguard service.
“It is impossible to put a price on a child’s life. We are determined to argue that we should have learned from the lessons from the past and that key council safety measures remain in place to help to protect the lives and well-being of our children and young people."
Conservative councillor Cameron Stokell, the council’s deputy leader, earlier this month said the scale of required budget savings meant “many of those savings proposals were never going to be easy decisions”.