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HomeMy WebLinkAbout20-17P TRAFFIC IMPACT STATEMENT_1-30-20 360 BurnhamTRAFFIC IMPACT STATEMENT FOR THE PROPOSED DEVELOPMENT OF 360 BURNHAM STREET SOUTH WINDSOR, CT The proposed development of the subject property will be the construcon of 13 small business rental units in 3 separate buildings, with a total gross floor area of 13,400 square feet; construcon of paved driveways and parking areas; construcon of on-site storm water management facilies, including storm water retenon/infiltraon basins with a discharge either to wetlands on the project site or to a catch basin located on the north side of Burnham Street; installaon of on-site sanitary sewer, potable water supply, natural gas, electric and telecommunicaons facilies, which will be constructed from connecons to the respecve exisng main line ulity infrastructure in Burnham Street or its right of way; other miscellaneous associated incidental construcon; and land regrading and restoraon, including earth cuts and fills and finished landscaping. A new curb cut from Burnham Street will be created for the construcon of a proposed 24 foot wide two-way driveway entrance/exit for the subject property. The curb-to-curb pavement width of Burnham Street is 29 feet where the new curb cut is proposed. Sight lines from the proposed driveway locaon are sasfactory. The proposed driveway cut for the subject project site will be located about 0.5 miles east of the western terminus of Burnham Street, from its intersecon with U.S./CT Route 5. Burnham Street and its right of way in the vicinity of the proposed project site is located enrely within the Town of East Harord. The East Harord – South Windsor town line is coincident with the northerly street line of Burnham Street. Burnham Street in this area is mostly developed with a mixture of commercial, industrial and medium-density residenal use. It is ancipated that the primary market for the proposed rental units will be for the small business building and maintenance trades and skilled craspersons, such as electricians, plumbers, carpenters, home improvement contractors, roofers, painters, woodworkers, handymen/women, graphic arsts, event stagers, and the like, who may use the units as a base of operaons for an office, storage of materials and supplies used in their trade or business, assembly and fabricaon of parts, materials and products used or produced in their business, and parking of motor vehicles and ulity trailers used in the trade or business in which they are engaged. Eleven of the proposed units will be located within one building and will each have a gross floor area of 1000 square feet. Each unit will have a personnel door, an overhead door, and two external and one internal parking spaces. The construcon of this proposed building containing the eleven rental units will be modular, so that each unit could be rented individually for the smallest business operaon, or two or more conguous units could be rented by one enty for a larger business operaon. Whatever, the arrangement, the unit(s) rented by any parcular tenant would be separated from adjacent tenants by walls constructed within the interior of the buildings. In addion, there will be two separate free standing buildings of 1200 square feet gross floor area each on the site, with each comprising one rental unit, and having the same door and parking space arrangement as the proposed 1000 square foot units. The subject project site will have easy access and egress to/from major roads and highways located within a short distance of the site, including I-291 east and west; U.S. /CT Route 5 north and south, and CT Route 30 east. It is logical to presume that most traffic will ulize one or more of these major routes for access and egress to/from Burnham Street and the subject project site. In addion, the noted routes in turn directly connect to other major expressways and/or arterial routes in South Windsor, East Harord, and vicinity, providing ulmate direct travel in all direcons to and from the subject project site. The traffic impact of the proposed development will depend on how the proposed rental units will be used and occupied once the site is fully developed. For instance, if each constructed unit is ulmately rented separately, which may not be the case, one could presume that the traffic generated from the site might be more than if the parcular tenants were to rent two or more adjacent mulple units. Even though the proposed use of the subject property does not fit the exact descripon of any one parcular category of published ITE traffic generaon rates, employing the “Light Industrial” (Use 110) and “Industrial Park” (Use 130) classificaons as the most similar, and using an average daily traffic generaon rate of 7 trips per 1000 square feet of gross floor area, or 3.6 trips per employee, together with the proposed total gross floor area proposed for the project and a presumpon of all units being rented separately, with an average of 3.5 employees per unit, 91-146 daily vehicle trips may be expected. While the average daily traffic generaon was derived from the foregoing, the peak AM and PM hours are more speculave. Based on the selected use categories, the peak AM hour would be about 10-16 trips, while the peak PM hour would be about 11-18 trips. However, in a typical industrial use and employment scenario, employees would generally come to work during the usual peak morning hours and leave work for the day during the PM peak hours, with occasional come-and-go trips and deliveries to or shipping from the parcular business during other hours. However, with the potenal use and occupancy of the proposed rental units, it is probably unlikely that each one would be connuously occupied and used during the enrety of a usual working day, like an industrial or manufacturing facility or office, or even maintain regular on-site hours, therefore reducing the daily traffic generaon to and from the subject site. With the nature of the proposed businesses likely to rent the proposed units, it is presumed that the primary mes when the units might be used is early mornings and late aernoons, which might not coincide with peak traffic hours for more convenonal employment centers, and with less come-and-go traffic during the dayme. Also, there would likely be certain parcular units which might be used irregularly, and/or not on a daily basis, so that the total amount of traffic generaon from the developed site could be at a lower rate. Another factor to be recognized in considering the traffic impact of the proposed use of the subject property is that this property will be but one of many already commercial and/or industrial developed properes within this general vicinity of South Windsor and East Harord, which historically may have ranged in use, occupancy and traffic generaon rates from me to me, as ownership and/or leasing of the properes and employee counts changed, and that total traffic counts along Burnham Street may have varied as a result. Therefore, based on the foregoing discussion, it is my professional opinion that the development of the subject property as now proposed, the ancipated use and occupancy of this property, and the addional traffic movements which will be generated as a result of the proposed development, are ancipated to have minor impact on traffic use, volume and paerns on the local and State roads in the vicinity which will be used as access to and egress from the subject project site. ___________________________________ Raymond F. Nelson, Jr., P.E. Civil Engineer