Fort Smith City Zoning Code

APPENDIX C

TRAFFIC IMPACT ANALYSIS FORMAT

General outline of report.

Table of contents.

List of figures and tables.

•

Traffic impact analysis background and requirements.

•

Data sources.

Introduction.

Study area.

•

Existing land use.

•

Proposed development.

•

Existing roadway conditions and traffic counts.

Analysis.

•

Trip generation.

•

Trip distribution and trip assignment.

•

Projected site turning movement counts.

•

Projected traffic.

•

Capacity analyses.

Conclusions and recommendations.

Appendix.

Maps and diagrams.

Conditions maps and drawings.

• Location maps and site plans. ^{1, 2, 3}

• Master street plan. ⁴

• Existing turning movement count diagram: a.m. peak hour. ⁵

• Existing turning movement count diagram: p.m. peak hour. ⁵

• Existing turning movement count diagram: peak period for site. ⁵

• Summary of existing/projected 24-hour volumes. ⁶

Trip generation/trip distribution diagrams.

•

Site trip distribution. ^{7, 8}

•

Boundary street projected turning movements: peak period ⁵ for site. ⁹

Recommended site access configuration and roadway improvements.

•

Diagram. ¹⁰

Tables.

Land use characteristics and total site trips generated. ¹¹

Site trips attracted from passing traffic (if applicable). ¹²

Land use characteristics and internal/external site trip generated. ¹³

Summary of capacity analyses. ^{14, 15, 16, 17}

Conclusions and recommendations. As a minimum, the TIA shall identify all geometric and operational improvements necessary to provide an acceptable LOS for facilities within the project site and/or along the boundary streets of the project site. Both on-site and off-site improvements must be evaluated. Priority should be given to beneficial off-system improvements as a means of minimizing the impact on the existing transportation system. Improvements that are to be considered for the purpose of mitigating less than an acceptable LOS shall include as a minimum: pavement widening, installation of turn lanes, installation of median islands, access control, installation of curbs and/or sidewalks, installation of traffic signalization, traffic signing, and/or pavement marking modifications.

Appendix. Appendix documents shall be provided to the city at the time the TIA is submitted. The number of appendix documents to be submitted shall be identified at the time of the preliminary information meeting. At a minimum, the appendix shall contain:

Summaries of turning movement counts.

Summaries of 24-hour counts.

Summaries of capacity analyses.

All other data necessary to support findings and recommendations.

NOTES:

1.	Show pavement marking layout and lane usage for all boundary streets. Drawing must reflect driveway locations and roadway geometry within +/- one foot of actual location.
2.	Show driveways and land uses on both sides of all boundary streets of the proposed site.
3.	All driveways and intersecting streets that connect to a boundary street shall be illustrated in sufficient detail to serve the purpose of illustrating traffic function. At a minimum, this detail shall include all lane widths, traffic islands, medians, sidewalks, curbs, and traffic control devices.
4.	At a minimum, the drawing shall encompass a minimum four-mile radius from the site and shall identify all roadways designated on the city master street plan, their corresponding designation, a legend identifying roadway classifications, and the approximate location of the proposed development.
5.	Results of the turning movement count for each location shall be overlaid on top of the existing conditions layout.
6.	Indicate existing and projected 24-hour volumes for all major roadways, as identified in the preliminary scoping meeting. Assumptions of growth rates for traffic demand and references shall be identified on this exhibit.
7.	Indicate general directional distribution of trips to and from the development.
8.	Indicate assignment/distribution of projected trips for the site, by movement, at each access point.
9.	Indicate combined existing and site generated traffic and the site generated traffic volume for all movements at each intersection and/or driveway within the study area.
10.	The diagram shall, as a minimum, indicate existing and proposed pavement marking layouts for all boundary streets, proposed modifications to existing and/or the installation of new traffic control devices, proposed on-site circulation, parking layout, pad locations, and any modifications necessary to address increases in traffic demand associated with the site development that result in significant reductions in operations.
11.	The table shall include land use, gross leasable area (GLA), estimated daily trip generation estimates, and trip generation rates and estimates for weekday a.m., p.m., and for the development peak traffic period, broken down by entering and exiting trips.
12.	The table shall include assumptions regarding percentage of passer-by traffic associated with each land use for the development, including proper source references.
13.	The table shall include assumptions regarding percentage of internal/external capture traffic associated with each land use for the development, including proper source references.
14.	The table shall summarize before and after conditions associated with level of service (LOS) for all study intersections and access drives adjacent to the site, whether signalized and unsignalized. Furthermore, existing and proposed conditions shall be summarized side-by-side for each peak period evaluated. All special evaluation conditions shall be appropriately footnoted.
15.	Capacity analyses will be required for each roadway infrastructure improvement in order to verify the LOS associated with a given improvement.
16.	Capacity analyses will follow the principles established in the latest edition of the Transportation Research Board's Highway Capacity Manual (HCM) unless otherwise directed by the city engineer. Capacity will be reported in quantitative terms as expressed in the HCM and in terms of traffic LOS.
17.	Capacity analyses will include traffic queuing estimates for all critical applications where length of queues is a design parameter (e.g., auxiliary turn lanes, traffic gates, etc.).

(Code 1992, ch. 27, app. C)

Fort Smith City Zoning Code

APPENDIX C

TRAFFIC IMPACT ANALYSIS FORMAT

General outline of report.

Table of contents.

List of figures and tables.

•

Traffic impact analysis background and requirements.

•

Data sources.

Introduction.

Study area.

•

Existing land use.

•

Proposed development.

•

Existing roadway conditions and traffic counts.

Analysis.

•

Trip generation.

•

Trip distribution and trip assignment.

•

Projected site turning movement counts.

•

Projected traffic.

•

Capacity analyses.

Conclusions and recommendations.

Appendix.

Maps and diagrams.

Conditions maps and drawings.

• Location maps and site plans. ^{1, 2, 3}

• Master street plan. ⁴

• Existing turning movement count diagram: a.m. peak hour. ⁵

• Existing turning movement count diagram: p.m. peak hour. ⁵

• Existing turning movement count diagram: peak period for site. ⁵

• Summary of existing/projected 24-hour volumes. ⁶

Trip generation/trip distribution diagrams.

•

Site trip distribution. ^{7, 8}

•

Boundary street projected turning movements: peak period ⁵ for site. ⁹

Recommended site access configuration and roadway improvements.

•

Diagram. ¹⁰

Tables.

Land use characteristics and total site trips generated. ¹¹

Site trips attracted from passing traffic (if applicable). ¹²

Land use characteristics and internal/external site trip generated. ¹³

Summary of capacity analyses. ^{14, 15, 16, 17}

Summaries of turning movement counts.

Summaries of 24-hour counts.

Summaries of capacity analyses.

All other data necessary to support findings and recommendations.

NOTES:

1.	Show pavement marking layout and lane usage for all boundary streets. Drawing must reflect driveway locations and roadway geometry within +/- one foot of actual location.
2.	Show driveways and land uses on both sides of all boundary streets of the proposed site.
3.	All driveways and intersecting streets that connect to a boundary street shall be illustrated in sufficient detail to serve the purpose of illustrating traffic function. At a minimum, this detail shall include all lane widths, traffic islands, medians, sidewalks, curbs, and traffic control devices.
4.	At a minimum, the drawing shall encompass a minimum four-mile radius from the site and shall identify all roadways designated on the city master street plan, their corresponding designation, a legend identifying roadway classifications, and the approximate location of the proposed development.
5.	Results of the turning movement count for each location shall be overlaid on top of the existing conditions layout.
6.	Indicate existing and projected 24-hour volumes for all major roadways, as identified in the preliminary scoping meeting. Assumptions of growth rates for traffic demand and references shall be identified on this exhibit.
7.	Indicate general directional distribution of trips to and from the development.
8.	Indicate assignment/distribution of projected trips for the site, by movement, at each access point.
9.	Indicate combined existing and site generated traffic and the site generated traffic volume for all movements at each intersection and/or driveway within the study area.
10.	The diagram shall, as a minimum, indicate existing and proposed pavement marking layouts for all boundary streets, proposed modifications to existing and/or the installation of new traffic control devices, proposed on-site circulation, parking layout, pad locations, and any modifications necessary to address increases in traffic demand associated with the site development that result in significant reductions in operations.
11.	The table shall include land use, gross leasable area (GLA), estimated daily trip generation estimates, and trip generation rates and estimates for weekday a.m., p.m., and for the development peak traffic period, broken down by entering and exiting trips.
12.	The table shall include assumptions regarding percentage of passer-by traffic associated with each land use for the development, including proper source references.
13.	The table shall include assumptions regarding percentage of internal/external capture traffic associated with each land use for the development, including proper source references.
14.	The table shall summarize before and after conditions associated with level of service (LOS) for all study intersections and access drives adjacent to the site, whether signalized and unsignalized. Furthermore, existing and proposed conditions shall be summarized side-by-side for each peak period evaluated. All special evaluation conditions shall be appropriately footnoted.
15.	Capacity analyses will be required for each roadway infrastructure improvement in order to verify the LOS associated with a given improvement.
16.	Capacity analyses will follow the principles established in the latest edition of the Transportation Research Board's Highway Capacity Manual (HCM) unless otherwise directed by the city engineer. Capacity will be reported in quantitative terms as expressed in the HCM and in terms of traffic LOS.
17.	Capacity analyses will include traffic queuing estimates for all critical applications where length of queues is a design parameter (e.g., auxiliary turn lanes, traffic gates, etc.).

(Code 1992, ch. 27, app. C)

Fort Smith City Zoning Code

APPENDIX C

TRAFFIC IMPACT ANALYSIS FORMAT

General outline of report.

Table of contents.

List of figures and tables.

•

Traffic impact analysis background and requirements.

•

Data sources.

Introduction.

Study area.

•

Existing land use.

•

Proposed development.

•

Existing roadway conditions and traffic counts.

Analysis.

•

Trip generation.

•

Trip distribution and trip assignment.

•

Projected site turning movement counts.

•

Projected traffic.

•

Capacity analyses.

Conclusions and recommendations.

Appendix.

Maps and diagrams.

Conditions maps and drawings.

• Location maps and site plans. ^{1, 2, 3}

• Master street plan. ⁴

• Existing turning movement count diagram: a.m. peak hour. ⁵

• Existing turning movement count diagram: p.m. peak hour. ⁵

• Existing turning movement count diagram: peak period for site. ⁵

• Summary of existing/projected 24-hour volumes. ⁶

Trip generation/trip distribution diagrams.

•

Site trip distribution. ^{7, 8}

•

Boundary street projected turning movements: peak period ⁵ for site. ⁹

Recommended site access configuration and roadway improvements.

•

Diagram. ¹⁰

Tables.

Land use characteristics and total site trips generated. ¹¹

Site trips attracted from passing traffic (if applicable). ¹²

Land use characteristics and internal/external site trip generated. ¹³

Summary of capacity analyses. ^{14, 15, 16, 17}

Summaries of turning movement counts.

Summaries of 24-hour counts.

Summaries of capacity analyses.

All other data necessary to support findings and recommendations.

NOTES:

1.	Show pavement marking layout and lane usage for all boundary streets. Drawing must reflect driveway locations and roadway geometry within +/- one foot of actual location.
2.	Show driveways and land uses on both sides of all boundary streets of the proposed site.
3.	All driveways and intersecting streets that connect to a boundary street shall be illustrated in sufficient detail to serve the purpose of illustrating traffic function. At a minimum, this detail shall include all lane widths, traffic islands, medians, sidewalks, curbs, and traffic control devices.
4.	At a minimum, the drawing shall encompass a minimum four-mile radius from the site and shall identify all roadways designated on the city master street plan, their corresponding designation, a legend identifying roadway classifications, and the approximate location of the proposed development.
5.	Results of the turning movement count for each location shall be overlaid on top of the existing conditions layout.
6.	Indicate existing and projected 24-hour volumes for all major roadways, as identified in the preliminary scoping meeting. Assumptions of growth rates for traffic demand and references shall be identified on this exhibit.
7.	Indicate general directional distribution of trips to and from the development.
8.	Indicate assignment/distribution of projected trips for the site, by movement, at each access point.
9.	Indicate combined existing and site generated traffic and the site generated traffic volume for all movements at each intersection and/or driveway within the study area.
10.	The diagram shall, as a minimum, indicate existing and proposed pavement marking layouts for all boundary streets, proposed modifications to existing and/or the installation of new traffic control devices, proposed on-site circulation, parking layout, pad locations, and any modifications necessary to address increases in traffic demand associated with the site development that result in significant reductions in operations.
11.	The table shall include land use, gross leasable area (GLA), estimated daily trip generation estimates, and trip generation rates and estimates for weekday a.m., p.m., and for the development peak traffic period, broken down by entering and exiting trips.
12.	The table shall include assumptions regarding percentage of passer-by traffic associated with each land use for the development, including proper source references.
13.	The table shall include assumptions regarding percentage of internal/external capture traffic associated with each land use for the development, including proper source references.
14.	The table shall summarize before and after conditions associated with level of service (LOS) for all study intersections and access drives adjacent to the site, whether signalized and unsignalized. Furthermore, existing and proposed conditions shall be summarized side-by-side for each peak period evaluated. All special evaluation conditions shall be appropriately footnoted.
15.	Capacity analyses will be required for each roadway infrastructure improvement in order to verify the LOS associated with a given improvement.
16.	Capacity analyses will follow the principles established in the latest edition of the Transportation Research Board's Highway Capacity Manual (HCM) unless otherwise directed by the city engineer. Capacity will be reported in quantitative terms as expressed in the HCM and in terms of traffic LOS.
17.	Capacity analyses will include traffic queuing estimates for all critical applications where length of queues is a design parameter (e.g., auxiliary turn lanes, traffic gates, etc.).

(Code 1992, ch. 27, app. C)