Show KEEP IN LINE TO AVOID congestion motorists should stop wavering courses on city streets Dit disorderly orderly all alignment ament of traffic on he heaitly allily traveled rave led streets and the old fashioned regulation requiring drivers to pass on in the left when overtaking overta hini vehicles are two of tile the factors responsible for the failure of most american cities to use their overcrowded streets to more than 75 per edit of capacity according to studies made by the albert russet kussel erskine Cr bureau tor for street traffic research move on fixed tracks if all vehicles move moved on fixed tracks it would be possible to accommodate a muth much larger number on a given roadway declares miller mcclintock director of the bureau which Is endowed in harvard university tart part of the present resent confusion and danger on the streets result from the lie wavering course of leh kles cles this in turn results in wasteful spacing and in collisions this condition Is especially acute on curves and at street intersections on curves curvee traffie has a tendency to follow the shortest course while at intersections drivers often draw up in irregular lines when waiting for a traffic signal and make it impossible for the maximum num ber of vehicles to approach the intersection or move through it in orderly I 1 alignment cut across curves clait of tile lie tendency to cut across curves lias has been eliminated by the widespread use of lines marking t the e center of the roadway this principle can be further extended however in reports prepared by the bureau on intensive street traffic surveys made in chicago and more recently in san francisco it Is recommended that the entire width of the roadway be divided into lanee lane on curves and at intersections in the latter instance the innes should be marked within UK KHI feet of the intersection lanes should not be less than 9 feet wide and may be ns as much wider as required to obtain an equal division of tile the roadway |