642 CONFERENCE ON NATURAL BEAUTY 



tional value to the affected locality and to the metropolitan area) 

 should be mandatory where highways or other uses take park land. 



10. All natural and open space resources within metropolitan 

 areas should be inventoried and plans drawn for their preservation 

 and/or proper development. 



1 1 . Flood plain zoning regulations should be adopted to preserve, 

 by prohibiting urban or intensive development, all stream and river 

 basins to 50-year or appropriate flood level but permitting agricul- 

 ture, recreation, or parkway uses. Supporting lands and natural 

 topographic features should be included as the spine of a lineal park 

 system embracing the rivers and streams. 



12. There should be planning for both vehicular parkways and 

 pedestrian walks and trails, including provisions for bicycle and 

 bridle paths. 



13. Policies should be developed that will insure that State and 

 local departments effectively coordinate antipoverty training, Job 

 Corps, and similar programs with their open space, recreation, and 

 conservation programs. 



14. Where a comprehensive open space plan is established by a 

 governmental unit, development should be prohibited in designated 

 open space locations through a development freeze order of six 

 months maximum duration. Appropriate legislative authorization 

 would be required. 



15. Local governments should carefully consider and, if possible, 

 develop their water supply reservoirs as park features with these parks 

 open to the public. 



16. Local and regional park departments and conservation 

 agencies should have first refusal of tax-delinquent lands. 



17. Local governments and regional park authorities should 

 establish an adequate revolving fund to permit open space acquisi- 

 tion without delay as critical lands become available. 



18. A street tree planting program should be initiated in every 

 urban area. 



19. Local governments should exercise rigid control over outdoor 

 advertising in relation to parks and open space. 



20. Aggressive programs should be undertaken to eliminate exist- 

 ing overhead transmission poles and lines and to require future instal- 

 lations to be placed underground. 



2 1 . Means should be explored by which the use of salt and chemi- 

 cals injurious to plants can be replaced with other snow removal ma- 



