TRAFFIC SIGNALS.

Press, Volume LXVI, Issue 20093, 24 November 1930, Page 13

TRAFFIC SIGNALS.

(PO UTIONj> OTLINIIiD -

FOBOTSEKVAN-CE.

automatic traftio .-i-iiaJs, * of coloured lights, been installed on the Set and Cashel street mtcr Cs >sbo «tree into opera t. on anlthe Chief Traffic itfr'H. Macintosh, in an mSaturday outlined the which traffic would be eon- / them-' Somewhat similar iitrol have been in use in -ome-months, and a set installed in Dunedm. jjfjlttte'y J ers of vehicles-and all streets are urged to #9°,. Jives conversant witli the sTgnals are intended to £ factor of safety and at the facilitate the movrmcnl They are being used in scv'frter countries with success, and-anticipated-m their apwhich consist of four of three lights, fixed one on corner of the intersection, a.e «the Grouse Hinds system, and on the far side of each cor"nSt all concerned can obtain an fJennP tsd view " ' Fo - r t - he T• 11 Placed on existing .poles, 11 Sfrom the ground, and they are aivertically-

Meaning of the Lights. -Tie top signal light, which is reel, moi that traffic must stop at, the Wfiie marked in- the roadway. All 1 facing tbat light must remain SdSthe next light which will Snereen, indicates that traffic can proiToTer the intersection straight Si It does not mean that drivers f_ w speed up dangerously or dasl. Mr the crossing, as the speed limit is miles per hour. The green also am tbat drivers wishing to turn to Wt are permitted to do so, and, as "wri.nn will also be passing straight Sat these drivers must proceed canaulv, giving reasonable right of way Bjedatrians crossing their path. •The next light after green will be mbtr which. indicates caution, and HnaitY traffic which is on the interaction and has actually passed the Slip'line to continue and complete crossing. It may be that some wdtstrians w ho have just left the footSi to eross may, on the appearance of tie amber light, return to the footpath raj-frlit until the green light appears mja. This latter idea has many wits to recommend it, the main argukst being that wheel traffic may turn i the left—safety first should always it in everybody's mind. After amber nines the red light again. "1 suggest that the public commit to iMoiy the colours in the following ritr," said Mr Macintosh, "green, red, or their respective meanap, 'Go,' 'Stop,' 'Stop,' or bottom Egit, middle light, top light." Cycle of Operation. "The following cycle of operation, based on a census of traffic taken on Kteral occasions, will be used for the fait trial:—The full cycle of operation nil be 43 seconds each way, that is wth and south will be. the same, and ait and west will be the same. The feen signal .north and south will be Aibited for 20 seconds, followed by aaber for seven seconds. At the same jme east and west.will be.eiiiibitecL-!" conds Ted. The. next change north apTOutff ~will~ exhibit red - for-10 «■»!>«, whilst at the same time east si Kit will first show green for 10 ; Mali, followed by amber for f> seeoik His completes the cycle of (fsjiiseach way for 43 seconds. 'SMI a traffic inspector or police ssskre cause to take control of the his instructions are to take pfiettteJ The apparatus " can also be gpiSefmanuallyy and in this respect WlSitf, Working it by-the turning of ilttfe, ean control traffic as he finds itKwaxy,-all lights having the same Eainj, bat in periods to suit the dcm&ri the traffic.. The manual confcdwD wMy* be used when,, found w«nj,.as for exceptional traffic con&est°Ud on such occasions as pro®M*Vitace traffic, funerals, etc.

• Manual Control. lit automatic and pun! Mntrol used is the very latest is tafie signal equipment. It should MWia a cabinet on the side of the Oetjbut (or the present is temporarily to an .existing post. The decis toatrol is so arranged that if neces- <? tie master switch' can be fixed in Bain office of those controlling Ofit The control box contains a very turning switch and motor, by.adjnstment on face plate, has ! asp ß -®f cycles from, 40 to 120 :It also has a switch to turn ~™« £ 'iignals to r«;d or stop, the idea all traffic for the' free J'Wp 4f fire engines, ambulances, etc. b® particularly remembered turns are absolutely Mr Macintosh, in' con"Special attention is drawn to * aet that -drivers must make sure tte aot..being confused by strange coloured lights about the