TRAFFIC
The Town of East Hartford is an established community with a strong industrial base mixed with many residential neighborhoods. East Hartford is located to the east of the capital city of Hartford where many large employers are located. The network of thoroughfares within the Town not only carry local intertown traffic for residents, but intratown traffic for commuters who live outside of East Hartford but work in East Hartford and commuters who live outside of East Hartford but pass through the Town to their places of employment.
The Town’s arterial and collector roadways are used heavily during peak hours. The extensive improvements to the infrastructure have caused traffic patterns to change and they will continue to fluctuate until the final layout continues to be an important part of the development process.
The close proximity to state roads and the size of developments in many cases will involve prior approval by the State of Connecticut Traffic Commission.
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Traffic Information Required
Site Generated Traffic
The ITE Trip Generation Report and factors shall be utilized in the required traffic analysis. Data should reflect a successful day for the development. Values, which are different than those, suggested by the ITE Trip Generation Report (current edition) need to be substantiated.
Morning peak hour for the roadway providing access to the site.
Afternoon peak hour for the roadway providing access to the site.
Morning and afternoon peak hour of the generator if different than the morning and afternoon peak hours of the adjacent roadways.
Other peak hours of the generator (weekday, midday, evening, weekend.)
Identify the hours of the day, day of the week, and the reason the hours and days used in Section 1.A.1 through 4, above were chosen.
Percent distribution of generated traffic, by direction, for each major road leading to the area and at the access points, for the same peak hours as in Section 1.A.1 through 4, above.
Flow diagrams for Section 1.A.1 through 4 and 6, above.
Note:
For shopping centers, projected traffic volumes as described in Section 1.A.1 through 7, above should have two submittals – one for Fridays and the other for Saturdays and should reflect a successful Friday and Saturday shopping day outside the Thanksgiving and Christmas shopping days; the gross floor area should be broken down by the major tenants.
For restaurants, provide size and location and indicate whether it is to be a fast food, or be a sit-down facility. Indicate if the facility has a drive-through.
For bank, provide size and location and indicate if a drive-through facility will be utilized.
For apartments, condominiums, hotel, and motels, the number of one, two, and three bedroom units, and the square footage area of each type of unit should be noted.
For other types of generators the Town’s Legal Traffic Authority shall be contacted for appropriate information to be submitted.
Existing Traffic
Existing turning movement counts are to be completed at intersections that will experience an increase of 100 or more vehicles during one or more peak hours as in Section 1.A.1 through 4 above. Any intersection immediately adjacent to the site or that will receive more than 75 percent of the site traffic shall be counted.
Flow diagram showing existing traffic for the same peak hours as in Section 1.A.1 through 4, above.
Background Traffic
Data should be adjusted to reflect the background traffic for the month that carries the heaviest ADT on the subject roadway when the development will be occupied – should not reflect an average annual daily traffic. The existing traffic data is to be adjusted by an annual growth factor for each year from the time the existing counts were made to the year when the development will be fully opened. Inquires regarding seasonal adjustments and yearly growth factors should be directed to the Legal Traffic Authority.
Background traffic for the same peak hours as in Section 1.A.1 through 4 above, in the year the development is scheduled to be fully occupied.
Identify the other development whose traffic is included in the background traffic.
Identify the seasonal and annual growth factors applied to the existing traffic and justify their selection.
Flow diagrams for Section 1.C.1 above.
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Combined Traffic
Data shall include background plus site generated traffic.
Combined traffic for the same peak hours as in Section 1.A.1 through 4, above.
Flow diagrams for Section 1.D.1 above.
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Capacity Analysis
Include all input data, supportive computation sheets and/or charts. When the analysis indicates improvements are necessary, recommended improvement plans should be submitted. Analysis should be provided for intersections that will be significantly impacted by the development as identified in Section B above. The analyses should be conducted for the time periods identified in Section 1.A.1 through 7 above for the following traffic conditions.
1.) Existing conditions
2.) Background traffic without improvements
3.) Combined traffic without improvements
4.) Combined traffic with improvements (if required)
5.) The submitted analysis should be conducted in~~~~ accordance with Transportation
6.) Research Board Special Report 209 (1985 Highway Capacity Manual.)
7.) Inquires concerning the format may be directed to the Legal Traffic Authority.
Storage / Queue Analysis
The submission of a Storage and/or Queue analysis supporting the background andcombined traffic capacity analysis provided under Section 1.E.1 and 2 is usually necessary under the following conditions:
1.) When exclusive turning lanes exist or are proposed
2.) When there is a potential for vehicular backups between adjacent intersections and/or major drives.
3.) When limited stopping sight distance will exist on a signalized approach.
4.) Off-ramps approaches to signalized intersections.
Other conditions may be identified by the engineer or the Legal Traffic Authority in which a Storage/Queue analysis is required.
Sight Distances
Intersection sight distance shall be provided for any site driveways. The Department of Transportation guidelines shall be utilized to determine minimum and desirable sight distance.
Accident Analysis
Accident problem areas (if any) in the vicinity of the site or off site impacted locations, should be identified.
Mass Transit
The applicant should provide a statement on how the use of buses, trains, vanpools, and car pools by employees and/or patrons has been considered, especially in terms of the development’s internal circulation and parking.
Improvements of Public Facilities
If any improvements are planned to Town or State roadways as a result of the development’s traffic, forty (40) scale plans showing the proposed improvements shall be submitted for review along with the traffic information.
Roadway Classification
The designer shall receive approval from the Town Engineer concerning the roadway classification, which will be utilized in the design of a project. The typical sections, utility locations, and minimum design values are found in the standard details located in Appendix B.
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