In any new subdivision the street layout shall conform to the arrangement width and location of streets as indicated on the Village of Harristown Official Map, Comprehensive Plan, or the neighborhood development plan which was drawn up as part of the preapplication review. The overall plan in addition should conform to the following standards:
(A) 
In general, not more than 20% of the total land area of the subdivision should be in street right-of-way.
(B) 
The resulting street pattern should be properly related to topography and other natural features for aesthetic and drainage reasons. Further, the system should be so designed as to allow economic platting of the best building sites possible.
(C) 
The overall plan should result in proper functional classification of streets, with spacing of collector and major streets in accordance with standards contained in this section.
(D) 
The street system should afford satisfactory access to a public street to all building lots within the subdivision and provide the advantageous street service up to all adjoining lands.
Street alignment shall be so laid out so as to insure public safety and convenience for both vehicular and pedestrian travel. The following standard shall be followed in the alignment of streets.
(A) 
The number of intersections shall be kept to the absolute minimum necessary to provide reasonable direct traffic flow. No more than two streets shall converge at any one intersection. The intersection of streets shall be as near 90% as possible, never less than 70%.
(B) 
Street jogs shall be discouraged and should never be permitted with center-line offset of less than 150 feet.
(C) 
Reverse curves of major and collector streets shall not have tangents of less than 100 feet.
(D) 
The number of access points shall be reduced as the functional classification of the street increases and as travel volume and speed increases.
The design of streets shall relate to their function classification, surrounding development density and topography. Major streets shall be designed in accordance with anticipated traffic flow and desired speed of movement, all major widths and standards of construction shall be separately approved by the Village Board after recommendation of the Village Plan Commission and Engineer. The design of the residential streets and collector streets should conform to the standards of Table VI-I and the general standards contained in this Section related to such streets.
Local streets shall be designed in accordance with Table VI-I.[1] The function of local streets is to provide direct access to individual lots. The travel speed should be slow enough to minimize hazards to children and entering traffic (less than 30 miles per hour). The following standards shall relate to local streets:
(A) 
Local streets shall be so laid out that through traffic is discouraged.
(B) 
Local streets should be kept as short as possible and connect as directly as possible into a collector street.
Collector streets shall be designed and laid out in accordance to Table VI-I. The function of collector streets is to collect local traffic and move it conveniently and directly to the nearest major streets or neighborhood facilities (schools, churches, shopping, etc.). The access to a collector street should be limited to local streets. The design travel speed for collector streets shall be between 30 and 40 miles an hour. The specific requirements are as follows:
(A) 
Collectors should be spaced approximately 1/4 mile apart.
(B) 
Residential driveways generally should not be allowed to enter directly onto collector streets.
(C) 
Collector streets shall be provided with ten-foot crosswalks at reasonable intervals.
(D) 
Setback on all collector streets shall be increased over minimum zoning district setbacks in relation to the traffic volume anticipated.
(E) 
Four-foot sidewalks shall be required at least on one side of urban collector streets, and where required by the corporate authority may be required on both sides.
(F) 
Where parking and driveway entrances are necessary along collector streets the pavement width shall not be less than 40 feet. Where no lots face collector streets, the pavement width may be reduced to 36 feet or less, depending on the density of adjoining development.
(G) 
Access controls may be required on highly traveled collectors.
Major streets shall be designed in accordance to standards established at time of platting. All major streets shall be not less than 80 eighty-foot rights-of-way nor less than forty-eight-foot pavement. Additional width of parkways shall be required adjacent to residential areas and on major entry ways to the Village. The pavement shall be concrete. Sidewalks and curbs shall be provided on all major streets within one mile of Village all the standards shall apply to major streets unless waived by the Village Plan Commission and Village Board.
(A) 
The access to major streets shall be strictly controlled. No single-family residential drive shall enter directly into a major street.
(B) 
Streets entering major streets shall be limited to one-fourth-mile intervals.
(C) 
Major streets shall be spaced at on- mile intervals within the built-up urban area.
(D) 
Provisions shall be made for vehicular and pedestrian access to residential property abutting major streets either by provisions (1) marginal access streets, or (2) by backing lots to the major street and providing access by a collector, minor, or cul-de-sac street one lot depth removed and with a visual barrier established in a non-access reservation strip along the rear property line (abutting the major street). These standards are established for the purpose of providing protection to residential properties and to separate through and local traffic. The specific method used shall be determined by the Village Plan Commission in the preapplication review.
(E) 
All major streets shall have constructed with access control rights granted to the Village and in commercial areas joint frontage road or shared access points may be required.
(F) 
All new subdivisions along limited access collector and limited access major streets shall be arranged to provide access to such highways at intervals not less than one-fourth-mile intervals, except where impractical or impossible due to existing property divisions or topography. There shall be no other access to a limited access major street or a limited access collector street except as noted above. Also, roads and streets within such subdivision shall be arranged to permit access to adjacent future subdivisions without encroachment upon this regulation.
(G) 
Commercial and industrial subdivisions along major streets shall be responsible for special traffic improvements to adjacent major streets. Such improvement shall be as required by the Village Board after recommendations by the Village Engineer.
At times special roadway types, such as, scenic drives, industrial roads, freeways, half streets, marginal access and frontage roads may be necessary. The following requirements govern such situations.
(A) 
Freeways. Whenever a freeway, railroad track, or expressway passes through or adjacent to a proposed subdivision, the Plat Officer may require a street approximately parallel to and on each side of such right-of-way, at a distance suitable for the appropriate use of the intervening land, as for park purposes in residential districts, or for commercial or industrial purposes in appropriate districts. Such distances shall also be determined with due regard for the requirements of approach grades and future grade separations.
(B) 
Marginal access road. Marginal access roads should have twenty-four-foot widths with sidewalks on the development side and curb and gutter where deemed necessary.
(C) 
Cul-de-sac streets. Designed to have one end permanently closed shall not exceed 1,000 feet in length. All cul-de-sac streets designed to have one end permanently closed shall terminate in a circular turnaround having a minimum outside curb radius of 40 feet.
(D) 
Half streets. In general, half streets should be avoided, but where they are essential a minimum pavement surface of 20 feet in width shall be constructed with both curb and sidewalk on the development side.
(E) 
Reserve strips. Reserve ("spite" or "devil") strips controlling access to streets shall not be permitted. Streets roughly paralleling the subdivision boundary shall be located not less than one lot depth from said boundary. All streets intended to provide the subdivision with future means of ingress and egress shall extend to the subdivision boundary.
(F) 
Streets in floodplains. Elevations of collector or major streets passing through flood areas shall be at least two feet above the one-hundred-year recurrence interval flood local and shall be designed to have minimum adverse effect upon flood flows or velocities. All local streets, other than parkways, shall be two feet above the fifty-year flood level.
(G) 
Private roads prohibited. Private roads and streets shall be permitted only when the subdivider submits sufficient evidence to the Committee that there can be no public interest in such private road or street.
(H) 
Alleys and pedestrianways.
(1) 
Alleys shall be at least 16 feet side, where permitted, in residential areas. Alleys at least 22 feet wide shall be provided in commercial areas unless such areas are otherwise provided with off-street loading space.
(2) 
Pedestrianways shall be at least 12 feet wide, where permitted, and a four-foot chain-link fence with a top rail shall be installed at side boundary lines to within 12 feet of street or alley lines.
(3) 
Dead end alleys shall not be allowed.