A. General Requirements:
1. All development shall be provided with safe and adequate access designed to accommodate development at maximum planned densities unless the applicant restricts future subdivision through deed restrictions. Street systems shall be designed and constructed in accordance with this section.
2. No development shall be approved if such development, at full occupancy, will result in an increase of traffic on an arterial or collector street within one mile of the development so that the street does not function at a level of service "D" or better as defined by the transportation research board, national research council in the highway capacity manual. The applicant may propose and construct approved traffic mitigation measures to provide adequate roadway capacity for the proposed development. The applicant shall submit a traffic impact analysis in accordance with subsection I of this section, as applicable.
B. Street Design:
1. Application Of Provisions: The standards established by this section shall apply to all public and private roads in the city or subject to its extraterritorial subdivision authority.
2. Guidelines And State Requirements: The city comprehensive plan, major street map shall serve as a guide for the location and scale of future arterial and collector streets. Street and sidewalk design and construction shall be in conformance with the "Illinois Department Of Transportation Design And Environmental Manual" and chapter 5 of the "Illinois Department Of Transportation Federal Aid Procedures For Local Highway Improvements" and the requirements of this section.
3. Exceptions: Exceptions to the requirements of this section shall be obtained in writing from the public works director.
4. Street Classification: All streets shall be classified as major arterial, minor arterial, collector or local streets. Any street that is not already classified in the city road system shall be classified by the building official in consultation with the public works director, subject to confirmation by the city council. In classifying streets, the city shall consider projected traffic demands after twenty (20) years of development. All section line roads shall be considered arterial streets unless specifically designated otherwise in the adopted major street map, or unless the public works director finds that there will be no future need for an arterial road along a particular section boundary.
5. Street Design Standards: All street improvements intended to become a part of the city road system shall be designed according to the standards shown in table 9-1 of this section.
TABLE 9-1: STREET DESIGN AND CLASSIFICATION
Street Classification | |||
Design Standard | Principal Or Major Arterial Street | Minor Arterial And Collector Street | Local Street |
Street Classification | |||
Design Standard | Principal Or Major Arterial Street | Minor Arterial And Collector Street | Local Street |
Minimum right of way width feet | 80 | 60 | 50 |
Minimum paved street width feet measured between curb faces or between flow lines of gutters | Site specific design required | 30 | 30 |
Maximum grade | Not <0-5 percent; not >5 percent | Not >10 percent | Not >10 percent |
Traffic lanes | 2-4 | 21 | 2 |
Horizontal curvatures, minimum centerline radius designated "R" | R = 500 feet | R = 500 feet | R = 125 feet |
Design speed mph | 45-552 | 30-352 | 302 |
Shoulder not required if curbs and gutters are provided | 4 feet each side | 2 feet each side | 2 feet each side |
Curb and gutter | Required | Required3 | Required3 |
On street parking | Not permitted | Controlled | Controlled |
Notes:
1. Turn lanes may be required by the city council.
2. Lower design speeds may be approved by the city council for principal arterials running through the city.
3. Gutter only may be approved by the public works director on a case by case basis.
6. Topography And Arrangement:
a. Street grades and alignment shall be related and integrated with the existing topography. However, a combination of steep grades and curves shall be avoided. Local streets shall be curved wherever possible to avoid the appearance of rigid conformity. All streets shall be arranged in order to gain as many building sites as possible at or above the grades of the streets.
b. All streets shall be aligned with the existing and proposed system of thoroughfares and dedicated rights of way as established in the comprehensive plan, major street map or adopted technical standards for public improvements.
c. All streets shall be properly related to special traffic generators such as industries, business districts, schools, churches, and shopping centers to population densities, and to the pattern of existing and proposed land uses.
d. Collector and local streets shall be designed to conform as much as possible to the topography to discourage use by through traffic, to permit efficient drainage and utility systems, and to require the minimum number of streets necessary to provide convenient and safe access to property.
e. Proposed streets shall be extended to the boundary lines of the tract to be subdivided, unless the city council finds that the extension is prevented by topography or other physical conditions, or unless, in the opinion of the city council, 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.
f. In business and industrial developments, the streets and other access shall be planned in connection with the grouping of buildings, location of rail facilities, and the provision of alleys, truck loading and maneuvering areas, and sidewalks and parking areas so as to minimize conflict of movement between the various types of traffic, including pedestrian.
7. Street Arrangement:
a. Adequate Traffic Circulation: Provisions shall be made for adequate traffic circulation. Local streets shall be designed to limit through traffic.
b. Lot Access: Every lot shall have approved access to a public right of way accepted by the city council. Multiple driveways shall be reviewed and may be approved by the public works director.
c. Street Connections: Streets should connect with those already dedicated in adjoining or adjacent subdivisions and provide for future connections to adjoining unsubdivided tracts whenever possible.
d. Dead End Streets: If the adjacent property is undeveloped and the street must temporarily be a dead end street, the right of way shall be extended to the property line. A temporary cul-de- sac, T or L shaped turnabout shall be provided on all temporary dead end streets, with the notation on the subdivision plat that land outside the normal street right of way shall revert to abutting property owners whenever the street is continued. The city may limit the length of temporary dead end streets in accordance with these regulations.
e. Street Alignment; Jogs: Offset streets shall be avoided where possible. Street jogs with centerline offsets of less than one hundred twenty five feet (125') shall not be permitted, except where the intersected street intersection has divided lanes without median breaks.
f. Intersection Of Streets: The angle of intersection between streets shall not vary by more than ten degrees (10°) from a right angle.
g. Minimum Curb Radius: At the intersection of two (2) local or collector streets, the minimum curb radius shall be at least twenty five feet (25'). At an intersection involving a collector street classification, minimum curb radius shall be at least twenty five feet (25'). Alley intersections shall have a curb radius of fifteen feet (15'). The radii at all intersections with arterial streets shall be designed according to the IDOT design manual.
h. Cross Slope: The cross slopes of all streets, including intersections, shall not exceed three percent (3%).
8. Cul-De-Sac Streets:
a. Cul-De-Sac Approaches: Cul-de-sac approaches shall have a minimum right of way width of fifty feet (50'). Development on cul-de-sacs longer than three hundred feet (300') shall not generate more than three hundred (300) vehicle trips per day as projected using the current institute of transportation engineers trip generation manual. A cul-de-sac street shall not exceed six hundred feet (600') in length.
b. Cul-De-Sac Turnarounds: Cul-de-sac turnarounds shall have a minimum paved diameter of sixty feet (60') and a minimum eighty foot (80') diameter right of way, or twenty feet (20') greater than the paved area, to include sufficient area for easements needed for utilities, drainage and mail service.
c. Temporary Cul-De-Sac: A temporary dead end street in a phased development may be constructed without a turnaround if such street is less than one hundred twenty feet (120') in length. A street constructed in a phased development that is longer than one hundred twenty feet (120') shall have a temporary turnaround.
9. Alleys: Alleys with a twenty foot (20') wide right of way and eighteen feet (18') of paved roadway may be required in commercial areas, in the rear lots of multiple-family districts unless other adequate provisions are made for service and deliveries, and where justified by special conditions such as the continuation of an existing alley in the same block. Alleys are not required in residential districts. Dead end alleys are prohibited.
10. Half Streets: Half streets are prohibited, except where an existing platted half street abuts the subdivision. Where a platted half street exists, the other half street shall be required to be completed by the applicant.
11. Private Streets: No private streets shall be platted in any subdivision.
12. Secondary Access: Secondary access shall be provided for any development projected to generate more than three hundred (300) trips per day or to take sole access from a street projected to carry more than three hundred (300) trips per day.
13. Curbs And Gutters: Curbs and gutters shall be required by the council for any development on lots of one-half (1/2) acre or less, or along streets located within one-fourth (1/4) mile of the city unless the council deems otherwise.
14. Street Names: Streets in alignment with existing streets shall bear the names of the existing streets. Proposed street names that are in conflict with existing street names shall not be approved.
15. Street Dedication And Maintenance: No road or street shall be accepted by the city unless it meets the design standards established by this title and all other design standards established by the city.
16. Minimum Pavement Thickness: The minimum pavement thickness shall be seven inches (7") of concrete or eight inches (8") of class I bituminous concrete. Both options require a four inch (4") CA-06 compacted aggregate subbase. Pavement thickness for streets with anticipated traffic volumes exceeding five thousand (5,000) ADT or ten (10) motor units shall be designed in accordance with chapter 54 of the IDOT design manual.
17. Streets Outside City: Streets constructed outside the city limits, which are not expected to be incorporated into the city limits within the next twenty (20) years, may be exempted from the requirements of this subsection if approved by the council. Minimum pavement width shall be twenty four feet (24') with two foot (2') earthen shoulders. Pavement thickness shall be three inches (3") bituminous concrete pavement, placed in two (2) lifts, on six inches (6") of compacted aggregate base.
C. Street Construction Standards: Construction shall be in accordance with the current edition of the "Illinois Department Of Transportation Standard Specifications For Road And Bridge Construction" and the following:
1. Prior to constructing any pavement, the developer shall demonstrate satisfactory subgrade and subbase construction by proof rolling with a legally loaded tandem axle dumpbody truck. All soft areas shall be removed and replaced.
2. Asphalt pavement shall be constructed in the following lifts: initial lift of four inch (4") to six inch (6") compacted thickness of binder, intermediate lift of two inch (2") to three inch (3") compacted thickness of binder, and a final lift of one and one-half inches (11/2") to two inches (2") of surface mix. Each lift shall be allowed to cool overnight prior to placing the next lift. No traffic construction equipment shall be allowed on the pavement between lifts.
3. All pavements shall be cored for acceptance by the city. Areas of pavement in excess of one-fourth inch (1/4") deficient in thickness shall be corrected as approved by the public works director.
D. Materials: Material shall be in accordance with the current edition of the "Illinois Department Of Transportation Standard Specifications For Road And Bridge Construction" and the following:
1. Concrete pavement, sidewalks, and curb and gutters shall be constructed of class SI (class X) concrete.
2. Bituminous concrete binder shall be type B. Bituminous concrete surface course shall be type 2. All bituminous mixtures shall be class I.
3. Aggregate subbase shall be CA-06 limestone or crushed gravel.
4. Developer shall provide notice and opportunity for the city to measure densities for asphalt pavement and collect material samples for concrete, asphalt, and subbase. Pavement will not be accepted if notice of paving operations is not provided.
E. Traffic Control: Traffic control devices shall be provided for new development pursuant to standards adopted by the city.
F. Access Standards:
1. Purpose: The purpose of regulating the amount and nature of vehicular access points is to balance the need for providing access to individual private properties with the need to preserve an adequate level of capacity on the streets providing access. Vehicular access restrictions may be required to be shown on subdivision plats.
2. Access To Primary Arterials: Where a residential subdivision borders on or contains an existing or proposed primary arterial, the city may require that access to such streets be limited by one of the following means:
a. Lots shall back onto the primary arterial and front onto a parallel local street; no access shall be provided from the primary arterial; or
b. A series of cul-de-sacs, U-shaped streets, or short loops entered from and designed generally at right angles to the primary arterial; or
c. A marginal access or service road (separated from the primary arterial by a 10 foot wide planting strip and having access at suitable points).
3. Railroads And Limited Access Highways: Railroad rights of way and limited access highways, where so located as to affect the subdivision of adjoining lands, shall be treated as follows:
a. In residential districts, a type E buffer yard shall be provided adjacent to the railroad right of way or limited access highway. This strip shall be part of the platted lots and shall be designated on the plat.
b. In districts zoned for business, commercial or industrial uses, wherever practicable, the nearest street extending parallel or approximately parallel to the railroad right of way shall be a sufficient distance from the railroad right of way to ensure suitable depth for commercial or industrial sites.
c. When streets parallel to the railroad right of way intersect a street that crosses the railroad right of way at grade, they shall, to the extent practicable, be a distance of at least one hundred fifty feet (150') from the railroad right of way. Such distance shall be determined with due consideration of the minimum distance required for future separation of grades by means of appropriate approach gradients.
4. Lot Access: No building permit shall be issued for any lot or parcel that does not abut a public street.
5. Driveways:
a. Permits: A driveway permit, issued by the public works director, is required prior to the construction of any new access point. When a traffic study is required pursuant to subsection I of this section, no driveway permit will be issued until the traffic study process has been completed. Any nonresidential change in use resulting in the following will require a new driveway permit:
(1) An increase of greater than fifty (50) peak hour trips; or
(2) A ten percent (10%) increase in average daily trips; or
(3) Over ten (10) additional daily vehicle trips made by vehicles exceeding thirty thousand (30,000) pounds in gross vehicle weight.
b. Determination Of Boundaries: For the purposes of evaluating driveway permit requests, the boundary of the site is considered to be all contiguous parcels under the same ownership on the effective date hereof.
c. Driveway Design Standards:
(1) The minimum driveway width shall be twelve feet (12') for residential and fifteen feet (15') for nonresidential land uses, and the maximum driveway width shall be twenty four feet (24') for residential and thirty five feet (35') for nonresidential land uses. The minimum thickness shall be six inches (6") within the right of way.
(2) The driveways accessing paved roads shall provide an asphalt or concrete driveway approach from the property line to the roadbed edge.
6. Access Spacing Standards: Minimum spacing between adjacent driveways or a proposed driveway and an adjacent street intersection is shown in table 9-2 of this section.
TABLE 9-2: ACCESS SPACING STANDARDS
Road Classification1 | Minimum Separation Between Driveways2 | Minimum Separation Between Driveways And Intersecting Streets3 |
Local streets projected traffic <3,000 vpd | None | 35 feet |
Local collector and one-way frontage streets projected traffic 3,000 vpd and <6,000 vpd | 60 feet | 60 feet |
Collector and frontage roads projected traffic 6,000 vpd | 125 feet5 | 150 feet |
Arterial4 | 400 feet | 480 feet |
Notes:
(vpd = vehicles per day)
1. Roadway types refer to anticipated cross section based on major street map. All traffic volumes refer to 20 year forecast.
2. Access separation between driveways shall be measured from centerline to centerline.
3. Access separation between a driveway and intersecting street shall be measured from the centerline of the driveway and the nearest point of curvature of the intersecting street.
4. May require installation of turn lanes.
5. This standard is not applicable to single-family and duplex residential lots existing as of the effective date hereof.
7. Design Objectives: In reviewing an application for a driveway or access permit for any nonresidential or multi-family use, the public works director shall determine that the following objectives have been met:
a. Adequate clearance from any adjacent street intersection has been provided, and spacing from adjacent driveways is sufficient to safely minimize conflicts between traffic entering and exiting adjacent driveways.
b. Auxiliary lanes are provided as needed to:
(1) Minimize speed differentials with mainline highway traffic;
(2) Prevent the encroachment of turning vehicles on mainline traffic; and
(3) Prevent the queuing of inbound traffic from impacting mainline traffic.
c. Sufficient storage distance between the curb line and the first point of conflict for traffic on the site is provided to prevent the backup of traffic onto public streets. This distance shall be adequate to absorb the maximum peak period inbound traffic during the normal weekday.
d. Appropriate conflict reduction measures have been provided to safely manage inbound and outbound traffic. Median design features and driveway channelization shall be used, as appropriate, to accomplish conflict reduction.
e. Access locations have been properly offset from driveways or street intersections located across the roadway in order to limit conflicts within the mainline or median of the street.
f. The design of the access satisfies standard geometric guidelines for turning radii, driveway slope, angle of entry, design speed and width. The access grade within the public right of way shall not exceed three percent (3%). The drainage design of the access should not interfere with the drainage system in the public right of way.
g. The access provides for the safe crossing of pedestrians, the handicapped and bicyclists.
h. The installation of necessary traffic control devices for the safe and proper operation of the access meets the requirements adopted by the city and, in the case of traffic signals, are located so as to allow for proper signal coordination and adequate left turn storage needs at the access and nearby intersections.
i. Except in the A zoning district, no single-family or two- family lot smaller than one acre shall be created which is accessed from an arterial street or a major collector street.
j. These standards are not intended to preclude access to existing lots. Where the city standards would preclude access to a lot, the board of appeals and planning may vary the access standard.
8. Substandard Access: Where access standards of subsection F6 of this section, or the design objectives of subsection F7 of this section cannot be met, the public works director may grant a reduction in spacing standards of up to twenty percent (20%). If this is not a feasible alternative, a substandard access permit may be granted subject to the variance provisions of subsection 10-4-3J of this title and the following findings:
a. Conditions or circumstances exist which limit the strict application of the requirements of this title, including the lack of a secondary access to another public street, the inability to use joint access, and the lack of engineering or construction solutions that can be applied to mitigate the condition;
b. The proposed access will not result in undue delay or congestion or be detrimental to the safety of the motoring public using the roadway; and
c. The limiting access will create an exceptional and undue hardship on the applicant and that the permit issued will allow a reasonable use of the property.
G. Oversizing Streets:
1. Where a street runs through the proposed subdivision, the applicant shall be responsible for the construction of such street to a collector street standard.
2. If the traffic impact analysis indicates that the street will exceed the collector standard, the applicant shall be required to construct the designated street, subject to reimbursement by the city for the construction cost of the difference between the collector street and a minor arterial street. Should reimbursement funds by the city not be available, the applicant's responsibility for construction shall be limited to a collector standard; however, the design shall be modified to facilitate future expansion of such street. Any required improvements deleted by the public works director in order to facilitate the future street expansion shall not relieve the responsibility of the subdivider for such improvements. The cost of such deleted improvements shall be paid to the city. Such monies shall be deposited in a street construction fund such as a transportation improvement fee fund, which may be expended by the city council for the purpose of construction of arterial and collector streets within the city. Should the subdivider make such payments, he shall be relieved of any obligation for the completion of such deleted improvements.
H. Other Improvements:
1. Sidewalks And Pedestrian Path Standards:
a. Sidewalks or pedestrian paths shall be required along all streets.
b. Sidewalks or pedestrian paths shall be required along all collector and arterial streets located within one mile of the city, unless otherwise approved by the city council.
c. Walkways shall be designed to comply with the Illinois Americans with disabilities act; provided, that the council may approve a different standard for walkways across private property.
d. All required walkways shall be located within a dedicated right of way or access easement. A median strip of grass or landscaped area at least three feet (3') wide shall separate all sidewalks from adjacent curbs unless approved by the public works director.
e. Sidewalk and path easements shall be a minimum of ten feet (10') in width if adjacent to a public street or land. The minimum width of the sidewalk/path easement between the rear or side lot lines of a parcel shall be fifteen feet (15'), unless approved otherwise by the city council.
2. Street Signs: The applicant shall deposit with the local government at the time of final subdivision approval the set fee for each road sign required by the public works director. The city shall install all road signs before issuance of a certificate of occupancy for any residence on the streets approved. Street name signs shall be placed at all intersections within or abutting the subdivision, the type and location of which shall be approved by the public works director.
3. Street Lighting: Installation of streetlights shall be required in accordance with design and specification standards approved by the public works director.
4. Utilities:
a. Location: All utility facilities, including, but not limited to, gas, electric power, telephone and CATV cables, shall be located underground throughout the subdivision. All utility facilities existing and proposed throughout the subdivision shall be shown on the preliminary plat.
b. Easements: Easements, as required by the public works director, shall be provided for utilities (private and municipal), and such easements shall be at least ten feet (10') wide. Proper coordination shall be established between the subdivider and the applicable utility companies for the establishment of utility easements established in adjoining properties.
5. Street Trees: Street trees shall be planted in accordance with section 10-8-5 of this title unless the board of appeals and planning, upon recommendation of the public works director, grants a waiver. The waiver shall be granted only if there are trees growing along the right of way or on the abutting property that, in the opinion of the board of appeals and planning, comply with these regulations.
I. Traffic Impact Analysis:
1. Intent: The intent of this subsection is to provide the information necessary to allow decision makers to assess the transportation implications of traffic associated with a proposed development, to address the transportation related issues associated with development proposals that may be of concern to neighboring residents, business owners and property owners, and to provide a basis for negotiation regarding improvements and funding participation in conjunction with an application for development. This subsection establishes requirements for the analysis and evaluation of transportation impacts associated with proposed developments.
2. Scope And Purpose: A traffic impact analysis will be required for certain permitted and special uses, major subdivisions and site plans exceeding specific trip generation thresholds. The purpose of a traffic impact analysis will be to:
a. Evaluate traffic operations and impacts at site access points under projected traffic loads.
b. Evaluate the impact of site generated traffic on affected intersections in the vicinity of the development site.
c. Evaluate the impact of site generated traffic on the quality of traffic flow on public streets located in the vicinity of the site.
d. Evaluate the impact of the proposed development on residential streets in the vicinity of the site.
e. Ensure that site access and other improvements needed to mitigate the traffic impact of the development meet commonly accepted engineering design standards.
f. Ensure that adequate facilities for pedestrians, transit users and bicyclists have been provided.
g. Identify transportation infrastructure needs and related costs created by the development and cost sharing on needed improvements.
3. Applicability: Traffic impact analysis shall be required for any land use plan amendment, amendment to the zoning map, land subdivision permit, special use permit, rezoning or site plan under the following conditions:
a. The proposed use will generate more than one hundred twenty five (125) trips per acre per day according to the most current versions of the ITE trip generation informational report or comparable research data published by a public agency or institution, and which will generate, based on the size of the development, seven hundred fifty (750) or more average daily trips; or
b. The proposed development will concentrate one thousand five hundred (1,500) or more trips per day through a single access point.
4. Waiver: The requirements of this subsection for a traffic impact analysis may be waived by the public works director when it is determined that such report is not necessary to determine needed road improvements or that no unsafe or hazardous conditions will be created by the development as proposed.
5. Preparation: The traffic impact analysis shall be prepared by an Illinois professional engineer, with experience in the preparation of such analysis.
6. Traffic Service Standards: The standards for traffic service that shall be used to evaluate the findings of traffic impact studies are:
a. Capacity: A volume to capacity (V/C) ratio of 0.90 shall not be consistently exceeded on any arterial or collector street as designated on the thoroughfare plan. "Consistently" means that the V/C ratios are exceeded based on average daily peak hour traffic counts, projections or estimates.
b. Level Of Service: For local streets, a level of service C or better shall be maintained. On any arterial or collector street, a level of service D or better shall be maintained. Where the existing level of service is below these standards, the traffic impact analysis shall identify those improvements needed to maintain the existing level of service and what additional improvements would be needed to raise the level of service to the standards indicated.
c. Number Of Access Points: The spacing of access points shall comply with ASHTO standards.
d. Local Street Impact: Average daily traffic (ADT) on local streets shall be within the ranges spelled out in the thoroughfare plan for the class of street involved. No nonresidential development shall increase the traffic on a local street with at least three hundred (300) average daily trips by more than twenty five percent (25%).
e. Internal Circulation: On site vehicle circulation and parking patterns shall be designed so as not to interfere with the flow of traffic on any public street and shall accommodate all anticipated types of site traffic.
f. Safety: Access points shall be designed to provide for adequate sight distance and appropriate facilities to accommodate acceleration and deceleration of site traffic.
7. Contents: A traffic impact analysis shall contain information addressing the following factors:
a. Site Description: The report shall contain illustrations and narrative that describe the characteristics of the site and adjacent land uses as well as expected development in the vicinity which will influence future traffic conditions. A description of the proposed development, including access plans, staging plans and an indication of land use and intensity, shall be provided.
b. Study Area: The analysis shall identify the geographic area under study and identify the roadway segments, critical intersections and access points to be analyzed. The focus shall be on intersections and access points adjacent to the site and roadways or intersections within one-fourth (1/4) mile of the site.
c. Existing Traffic Conditions: The report shall contain a summary of the data used in the analysis of existing traffic conditions, including:
(1) Traffic count and turning movement information, including the source of and date when traffic count information was collected;
(2) Correction factors that were used to convert collected traffic data into representative design hour traffic volumes;
(3) Roadway characteristics, including the design configuration of existing or proposed roadways, existing traffic control measures (speed limits, traffic signals, etc.) and existing driveways and turning movement conflicts in the vicinity of the site; and
(4) The existing level of service for roadways and intersections without project development traffic using methods documented in the "Special Report 209: Highway Capacity Manual", published by the transportation research board, or comparable accepted methods of evaluation. Level of service should be calculated for the weekday peak hour and, in the case of uses generating high levels of weekend traffic, the Saturday peak hour.
d. Horizon Year(s) And Background Traffic Growth: The report shall identify the horizon year(s) that were analyzed in the study, the background traffic growth factors for each horizon year, and the method and assumptions used to develop the background traffic growth. Unless otherwise approved by the public works director, the impact of development shall be analyzed for the year after the development is completed and twenty (20) years after the development is completed.
e. Traffic Assignment: The report shall identify projected design hour traffic volumes for roadway segments, intersections or driveways in the study area, with and without the proposed development, for the horizon year(s) of the study.
f. Mitigation/Alternatives: In situations where the traffic level of service standards are exceeded, the report shall evaluate each of the following alternatives for achieving the traffic service standards:
(1) Identify where additional right of way is needed to implement mitigation strategies;
(2) Identify suggested phasing of improvements where needed to maintain compliance with traffic service standards; and
(3) Identify the anticipated cost of recommended improvements.
8. Process For Review And Preparation Of A Traffic Impact Analysis: The following steps provide an outline of the steps to be included in the preparation and review of a traffic impact analysis:
a. The public works director and building official shall be consulted for assistance in determining whether a traffic impact study needs to be prepared for a proposed development application.
b. The public works director and building official shall meet with applicants to identify study issues, assumptions, horizon years and time periods to be analyzed, analysis procedures, available sources of data, past and related studies, report requirements and other topics relevant to study requirements.
c. Following initial completion of a traffic impact analysis, the report shall be submitted to the building official for distribution to the staff of all jurisdictions involved in the construction and maintenance of public roadways serving the development.
d. Within ten (10) working days, staff shall complete an initial review to determine the completeness of the report and shall provide a written summary to the applicant outlining the need for any supplemental study or analysis to adequately address any deficiencies. A meeting to discuss the contents and findings of the report and the need for additional study may be requested by the applicant.
e. Following a determination that the analysis is complete, staff shall prepare a report outlining recommendations that have been developed to address the findings and conclusions included in the study regarding the proposed development's access needs and impacts on the transportation system. Depending on the type of application, the recommendations may be presented to the board and/or council.
f. In the case of a traffic impact analysis showing deficiencies requiring mitigation within the public right of way, negotiations based on the findings and conclusions resulting from the traffic study shall be held with the city council. A development agreement, detailing the applicant's responsibilities and the city's responsibilities for implementing identified mitigation measures, shall be prepared following the negotiations for action by both parties.
9. Remedial Action When Standards Not Met: If staff finds that the proposed development will not meet applicable service level standards, staff shall recommend one or more of the following actions by the public or the applicant:
a. Reduce the size, scale, scope or density of the development to reduce traffic generation.
b. Divide the project into phases and authorize only one phase at a time until traffic capacity is adequate for the next phase of development.
c. Dedicate right of way for street improvements.
d. Construct new streets.
e. Expand the capacity of existing streets.
f. Redesign ingress and egress to the project to reduce traffic conflicts.
g. Alter the use and type of development to reduce peak hour traffic.
h. Reduce background (existing) traffic.
i. Eliminate the potential for additional traffic generation from undeveloped properties in the vicinity of the proposed development.
j. Integrate nonvehicular design components (e.g., pedestrian and bicycle paths or transit improvements) to reduce trip generation.
k. Implement traffic demand management strategies (e.g., car or van pool programs, flex time, staggered work hours, telecommuting, etc.) to reduce trip generation.
l. Recommend denial of the application for development for which the traffic analysis is submitted. (Ord. 03-O-9, 3-18-2003)