Cornelius F. Burns,
President New York State Conference
of Mayors and other City Officials.
STREET CLEANING
SYSTEMS AND APPARATUS USED IN AMERICAN CITIES—METHODS OF REDUCING LITTER—COST DATA.
In establishing or rearranging its street cleaning system, every city must consider the problem from three angles: (1) Cheapest method of cleaning pavement; (2) Method of reducing litter; (3) Paving policy with a view to saving cost of cleaning.
The proper solution of each one of these problems will materially reduce the cost.
In outlining a program for a street cleaning department the following elements must be known and carefully considered:
(1) Kind of and state of repair of pavement. (2) Traffic to which they are subjected. (3) Facilities for disposing of street sweepings. (4) Climatic peculiarities. (5) Degree of cleanliness it is desired or expected to maintain. (6) Miscellaneous local circumstances.
Mr. S. Whinery, Consulting Engineer, says that in most cities the data afforded by local past experience and results, furnish the best basis for future projects and programs. Unfortunately few cities have records of these. The head of the department usually relies upon his own memory or that of his predecessor. While the methods followed and results obtained in other cities may and should be studied, it must be borne in mind that it is not safe to base conclusions upon such data without a full knowledge and careful consideration of all facts and conditions affecting them. This is particularly true of reported cost data, for in addition to differing physical conditions, it is unfortunately true that the present methods of accounting in many street cleaning departments make it next to impossible to ascertain the actual or relative unit cost of the various details of the work, and intelligently to compare results in one city with those in another. The experience of the New York State Bureau of Municipal Information in seeking data from the fifty largest American and all New York State cities provides ample proof of this condition. Fifty were able to give some data, but of these only a few had any accurate and detailed cost statistics.
The relative amount of dirt from the different sources of dust depends on the character of construction and condition of street surface, amount and character of traffic, character of neighborhood and people in the neighborhood, and street railway tracks.