We don't know where that 'elsewhere' might be. It would be very useful if the Traffic Dept would take advantage of the current closure, to find out what alternative routes traffic is currently using. It may be that much of the traffic is not local at all (i.e. not starting or ending a journey in Forest Hill, or even in Lewisham) and might stay on the A2 through New Cross rather than cutting through Forest Hill and Catford.
Are you satisfied that previous Council decisions - which blocked certain roads, prevented thru traffic, No Right Turns, One-Way Systems etc. - were all made on grounds apart from 'selfish' reasons? Were Devonshire Road, Woodcombe Crescent, Ewelme Road, Benson Road, Tyson Road considered when Manor Mount was made No Entry from the Western end?
Was Devonshire Road considered when all the No Thru traffic systems were introduced on the East side of the rail tracks between Forest Hill and Honor Oak Park? If not, was this not equally 'Preposterous'?