336 



PARKS 



believe that coarse cinders serve the purpose better. The depth may vary 

 from three to ten inches, depending upon local conditions. The fill should 

 be leveled and well rolled before the middle stratum is laid. This middle 

 layer should be made of medium-sized to relatively fine cinders, the depth 

 varying from five to twelve inches. This should be leveled and well rolled 

 before the top-dressing is added. 



Top-dressing. Each coach seemed to have his own particular depth, 

 screen or proportion for the top-dressing, (i) Front or head end cinders 

 have the preference. (2) These cinders to be run through a screen variously 

 recommended at from one-fourth to one-half-inch mesh, with the preference 

 nearer one-fourth inch. (3) The screened cinders to be thoroughly mixed 

 with a binder, clay and black loam seeming to rank about even as the best 

 for this. The selection of a binder should depend upon local conditions of 

 weather, as well as peculiarities of soil. Too much soil robs the surface of 

 resiliency; too little allows it to pack or roll. Experimentation only can 

 solve the problem for any particular locality. (4) The mixture recommended 

 ranged from three to five parts of cinders to one of clay or loam, with a 

 four-to-one proportion having the preponderance of votes. 



A quarter-mile track is strongly recommended for general use, and 

 although it is not always possible to have a track of this length it is seldom 

 desirable to build a longer one. The measurement of the track is 12 inches 

 from the inner edge. If it is intended to use the track for official meets, it 

 is suggested that the park or city engineer check the measurements and 

 have his figures certified. If possible a 22O-yard straightaway should be 

 provided. It is recommended that the radius of the curve be from 95 to 



RUNNING TRACK DIMLNSIONS (l) 



MILES 



* 



TOTKL 



LENGTH 



660.'0" 



330:0" 



LENGTH 

 OFSIDE 



1320.0 



330lo" 

 Ib5.'0" 



CIRCUS 



OF END 



66010" 

 330'.0 

 I6S)0" 

 WO" 



5*0:0" 



RflDil/S 



/ O'Mt 



ios. r <m 



52&I 

 $(0 

 70.0X8 



SflME 

 IK FI4IK. 



lOSri" 



C-CURB 



RflDiUS 



PLATE No. I37A 



TABLE OF RUNNING TRACK DIMENSIONS 



Compiled by Narragansett Machine Company, Providence, Rhode Island. 



A quarter of a mile track with B-End radius of 125 feet and a side 267.3 f eet long is better than the track 

 suggested in the table above if a baseball diamond is to be laid out inside the oval. 



