Show Would Change Present Rule About Passing Car Ahead Slow Ones Oyes Cause Accidents MILLER n CLI Director The AI Albert rt Russel t Ers Ers- Er Unc Bureau for tor Street t Research lh By a segregation of fast tast fist and slow moving mo vehicles vehicle It Is poul- poul possible ble ble to accomplish IL a great groat relief In traffic congestion A stow moving vehicle tends tend to hold an all following traffic down to Its lt own speed Drivers desiring to pass must walt wait their chance and then cut around On congested streets and highways ys cutting In la is not only difficult but dangerous dang It ItIs ItIs ItIs Is not too much to say ay that the driver er of ot the tho slow stow vehicle Is 18 not only one of the causes of con con- but also that he Is one of the principal causes of ac- ac accidents accidents nc Parlous methods s have bave been used to keep the slow moving vehicle from blocking other trat- trat traffic traffic fic tic A rule In general use through through- throughout throughout throughout out tho the country Is that slow movI movIng moving moving I ing vehicles shall keep to the right so BO that more moro rapidly movIng moving Ine Ing Ing- vehicles may overtake by bypassing bypassing passing to the left left SHOULD CHANGE C RULE naE The rule Is la of little value for tor forit It Is la rarely obeyed and It la is toba to tobe tobe be doubted If It It can ever bo en enforced en- en enforced enforced forced The center of tho the road rondo roadway roadway way Is usually the most desir desir- desirable desirable desirable able place to drive e drive either because of the character of the pave pave- pavement pavement pavement ment or the flatness of the crown The rule that requires all vehicles ve- ve vehIcles ve vehicles to overtake to to the left has added to the complications by throwing vehicles of all classes to the center of ot the roadway The rule rulo may have value alue on country highways but It Is obsolete for wide but crowded city streets Irk Irl cities automobiles should be permitted to overtake either to the right or left This will v re- re reduce re reduce duce duco tho the oleIn delay occasioned by the slow driver The tendency is toward to the roe roe- reservation res reservation of the more important arterial streets In a a city for the use of high speed automobile traffic and forbidding their use uso to commercial cars This rule I has long lonE been applied In Ameri Amerl- American American can cities titles to what might be called but It has a utility for general traffic streets as well In Inlaying Inlaying Inlaying laying out such regulations care should be taken not to occasion too great a ft diversion of com com- commer commercial mer mercial traffic HOUSES HORSES ARE AnE BARRED BAnnEn The Tho exclusion of ot certain types Of slow heavy heay hea y vehicles from des des des- desIgnated districts Is a 1 rule rulo that has hu been used In several cilles Thus In Los J Angeles horse drawn horse vehicles mil may not enter the cen- cen central central cen central business district during the tho crowded hours of Ih the tho afternoon It Is probable probable that In the near future futuro cities will wilt attempt to brIng abou an actual phy physical separ separ- separation separation atlon of fast and slow traffic This can Cnn bo ho done In one of two ways first by the tho construction of wide divided roadways the In- In InI Inner Inner In Inner I ner way ways to bo ho used by bJ express i and the tho outer ways by local and commercial traffic or second by the construction of double deuble level streets The latter type of separation Is Illustrated by bythe bythe bythe the new Wacker Drive In ChI ChI- ChIcago Chicago Chi Chicago cago where wh re trucks operate on the lower level mid IUd passenger cars care on the tho upper |