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§ 11.32 6. Cul-de-sacs shall be discouraged; proposed roadways shall be extended to the boundary lines of the tract to be subdiyided, unless prevented by topography or other physical condi- tions, or unless in the opinion of the City such extension is not necessary or desirable for the coordination of the layout of the subdivision with the existing layout or the most advantageous future development of adjacent tracts. 7. In business and industrial developments, the roadways and other accessways shall be planned in connection with the grouping of buildings, location of rail facilities, and the provisions of alleys, truck loading and maneuvering areas, and walks and parking areas so as to minimize conflict of movement between the various types of traffic, including pedestrian. c. Blocks. 1. Blocks shall have sufficient width to provide for two (2) tiers of lots-of ~ppropriate depths. Exceptions to this prescribed block width shall be permitted in blocks adjacent to arterial roadways, railroads, or waterways. 2. The lengths, widths, and shapes of blocks shall be such as are appropriate for the locality and the type of development contemplated, but block lengths in residential areas shall not exceed one thousand five hundred· (1,500) feet or twelvE (12) times the minimum lot width required in the zoning district, nor be less than four hundred (400) feet in length from centerline to centerline of adjacent streets. Wherever practicable, blocks along arterials collector roadways shall be not less than one thousand (1,000) feet in length. . 3. In all blocks the City shall require the reservation of an easement through the block to accommodate utili- ties, drainage facilities, or pedestrian traffic. Pedestrianways or crosswalks, not less than ten (10) feet wide, may be required by the City thro~gh the center of blocks more than eight hundred (800) feet long where deemed essential to provide circulation of access to schools, playgrounds, shopping centers, transportation, or other community facilities. Blocks designed for industrial uses shall be of such length and width as may be determined suitable by the City for prospective use. D. Access to Primary Arterials. Where a subdivision borders on or contains an existing or proposed arterial, the City may require that access to such roadways be limited by one of the following means: 1. The subdivision of lots so as to back onto the arterials and front onto a parallel local or collector roadway; no access shall be provided from the arterial, and screening shal, be provided in a strip of land along the rear property line of sucl lots. ORONO CC 458 (4-1-84)