The purpose of this section is to allow for the development of fully integrated, mixed-use pedestrian oriented neighborhoods. The intent is to minimize traffic congestion, suburban sprawl, infrastructure costs, and environmental degradation. The provisions of this section adapt urban conventions that were normal in the United States prior to World War II and were based on the following design principles:
A. 
All neighborhoods have identifiable centers and edges.
B. 
Edge lots are readily accessible to retail and recreation by nonvehicular means (a distance of no greater than one-fourth mile).
C. 
Uses and housing types are mixed and in close proximity to one another.
D. 
Street networks are interconnected and blocks are small.
E. 
Civic buildings are given prominent sites throughout the neighborhood.
(Ord. 99-23 § 1)
A. 
The widths, alignments and geometric designs of streets and highways shall conform to city standards and to the following requirements:
1. 
Streets shall provide access to all tracts and lots.
2. 
All streets and alleys shall terminate at other streets within the neighborhood and connec to existing and projected though streets outside the development.
3. 
There shall generally be a continuous network of alleys to the rear of lots within the TND.
4. 
The average perimeter of all blocks within the TND shall not exceed one thousand three hundred fifty feet. No block face shall have length greater than five hundred feet without a dedicated alley or pathway providing through access.
5. 
Utilities shall run along alleys wherever possible.
6. 
Street lamps shall be installed on both sides of the street no less than one hundred feet apart.
7. 
Rights-of-way and streets are encouraged to differ in dimensions according to use. Each street shall be separately designated in accordance with the following labels and street nomenclature:
a. 
Boulevard (BV). A boulevard is a larger multilane and generally urban corridor with a central, planted median.
b. 
Avenue (AV). An avenue is a connector that may be multilaned and run through a TND, terminating its axis a civic building or monument.
c. 
Street (ST). A street typically allows two-way vehicular travel, is of closed-section (curb and gutter) design, will predominately have sidewalks on both sides, does not have a central median or "refuge" area, and is the most common corridor in a TND.
d. 
Road (RD). A road provides access to primarily residential neighborhoods of lower (one to three dwellings per acre), may be of open or closed drainage section, and only has striped parking on street.
e. 
Drive (DR). A drive is found at the edge between a developed, sometimes urban area and a natural area such as a stream bed or dedicated natural open space; one side of a drive may be detailed with curbing, gutters, sidewalk and striped parking, while the other side may be detailed as a more rural condition, depending on location and the subdivider's intent.
f. 
Alley (AL). An alley is found to the rear of lots, has no sidewalks or setbacks, is designed as the service routes for the lots they abut, and is typically constructed with inverted crowns and center drainage, but may be constructed otherwise where lower density residential lots only are serviced.
8. 
Building setback lines shall be established along all streets and public space frontages, determining the width desired for each street or public space.
9. 
The long axis of the street shall have appropriate termination with either a public monument, specifically designed facade, or a gateway to the ensuing space.
10. 
Cul-de-sacs shall be allowed only where topography or lot line configurations offer no practical alternative. They shall not exceed two hundred fifty feet in length from the nearest intersection with a street providing through access.
(Ord. 99-23 § 1)
A. 
The maximum street right-of-way shall conform to the following table:
Table 16.51.060 Maximum Right-of-Way
Land Use
Row
Travel Lanes
Parallel Parking
Sidewalks
Curb Radius
Detached homes
40′
2 at 10′
None
5′
Maximum 8′
Attached homes/small lot detached homes
50′
2 at 10′
8′ on both sides
6′
Maximum 10′
Shop Front
65′
2 at 12′
8′ on both sides
12′
Maximum 10′
Business
65′
2 at 11′ and one 10′ central turning lane
8′ on both sides
9′
Maximum 15′
(Ord. 99-23 § 1)