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HomeMy WebLinkAboutBATCH - Supplemental - 0360 Spear StreetCity of South Burlington 575 DORSET STREET SOUTH BURLINGTON, VERMONT 05Q1 it TEL.(802) 658-7953 (Jei o he r 19, 1981 i Ralph & Ruth iaeslaur_i_er 100 Old Farm Road South liurlingt,on, \ermont 05403 1)ear Ralph & Huth: i OFFICE OF CITY MANAGER -- WILLIAM J. SZYMANSKI l.,ast Friday, October 14, 1988 1 met with ,you at Quarry Hi 1.1 Ciub to discuss the status of the Quarry Hill Road. You expressed concern regarding future access to this road for the halance of the vacant land it' the road was deeded to the City and became a public street. As you know the street will end with a temporary turnaround. The purpose of the temporary turnaround is to allow the street to be extended to serve the balance of the vacant land when it.is developed. Any development will have to conform with the zoning at the time subject to revivew and approval by the City Planning Commission. Also, of course, there may be State approvals necessary. The issue regarding the Quarry Hill. sign, I believe can be worked out. Our sign ordinance will be updated to allow for off' premise directional signs. It will be at least two years bef'or•e the City accepts Quarry Hill Road and that is when the sign would have to be removed because it would be an off' premise sign. By that time I would expect the ordinance change would resolve the problem or if that'i.s not acceptable we could make a side agreement as was done in the past. I hope this letter- helps ,your concerns regarding access to Quarry Hill Road for future development and the club sign. Sincerely, William J /SzJn7ski,4 City Manager WJS/mcp PLANNING COMMISSION FEBRUARY 8, 1983 Mr. Davidson explained that drainage would go into a catch -basin on Williston Road. Mr. Woolery noted that the little "neck" of land on the lot could not be used for access to Victory Drive. It ends at the Merriam -Graves lot. Mr. Woolery read the stipulations in the suggested motion dated 2/8/83 by DHS and some changes were made to them. Mr. Spitz suggested tabling the application for two months, since it will be some time before the sewer situation is known. In #10 of the proposed stipulations, Mr. Mona said the record should show that the 12 units is not an absolute. If there were a change in use, the appropriate number of units would have to be discussed. 12 would be a maximum, but that many might not be allowed. He also felt that the city attorney should draft an appropriate stipulation regarding the lack of sewer capacity at this time. Mr. Woolery asked if members had any problems with any of the stipulations, but Mr. Mona did not want to indacate any agreement with any stipulations at this time. Mr. Woolery moved to table the revised final plat application of LTH Associates for two weeks, February 22, at City Hall at 7:30 pm. to determine appropriate stipulation wording regarding the sewer allocation and the sewer policy. Mrs. Hurd seconded the motion and all voted for it. Sketch plan review of application boy Ralph DesLauriers Jr. for single family development (approximately 10 lots) of the R4 portion of the Quarry Hill property Mr. Spitz said the large question here was access. There are 60-80 units on East Terrace and 77 in the Horizon Heights development. Both are single - entrance roads, and contain well over the 50 unit maximum for such roads. Mr. DesLauriers said they would like to have 9 house lots in the R4 zone. They plan access from East Terrace. There is a 150' long 50' right of way, and after that they will have a 60' wide way. There is a separate parcel of DesLauriers land next to the area in question, which contains 1.2 acres. It is zoned R4 and is vacant. There are no plans for that area, but a 40' wide access area has been left for it. Mr. Woolery felt the cul-de-sac at the end of East Terrace should be opened and the entire area joined together. He noted that the Commission had stated many times in the past that it did not want commercial traffic going through a residential area. Mr. DesLauriers was told to work on a better access for one of the lots than coming across another lot, and to look at access to the 1.2 acre piece. He was also told the city would probably want a city street with a sidewalk and curbs for drainage. Mr. DesLauriers said eventually the road through these proposed lots would connect to Quarry Hill Road. Mr. Woolery noted that any development which used that road would require its upgrading. Mr. DesLauriers felt any major develop- ment would require that, but he did not feel this was a major development. Developing the R7 would be, he agreed. He said that for future development they would look seriously at Quarry Hill Road and expect to upgrade it to what the city feels is required. The connection between the area under consideration now and Quarry Hill Road would be made in the future. Several access options were discussed. Mrs. Maher reminded Mr. DesLauriers that there was no sewer capacity. She left at this time. Mrs. DesLauriers said Quarry Hill Road was up to city standards according to a letter from the City Manager, which she said she would bring in. :1 PLANNING COMMISSION FEBRUARY 8, 1983 Mr. Mona asked whether Mr. DesLauriers had any problem with opening the cul- de-sac, personally, and was told he felt it would be a good idea. Mrs. DesLauriers said there was a pedestrian right of way from Fast Terrace to Spear Street which the city owned and could open up. The meeting was adjourned at 10:30 pm. Clerk Memorandum Next week's agenda items 2/4/83 Page 2 A letter on anticipated parking needs is enclosed, and I concur with the applicant's request for only 9 spaces. However, an additional area should be shown on the plan for future parking if needed. Landscaping seems to be located in appropriate places, but total dollar amount must still be verified. Several additional items remain to be resolved, though many of these should be able to be completed by Tuesday's meeting: a) Driveway widening should take place on the east side only. b) Recreation fee will be $1775 and does not change the total amount required for the Rebecca Square development. c) A revised drainage plan shall be submitted. d) A water line easement must be provided. Also, some sort of stipulation must be placed regarding type of residential use for the building. Any change in use may modify parking and other standards, and any such change will require resubmission to the Planning Commission. Finally, since sewer capacity is currently not available, final approval can not be granted. I recommend that final review continue, that all proposed stip- ulations be discussed and agreed upon, and that final action then be withheld until sewer capacity becomes available. 4), Quarry Hill Application is for the recently rezoned R4 portion (approximately 2.85 acres) of the Quarry Hill property. Ten single-family lots are shown with access onto East Terrace and with potential for future connection to the R7 portion of the property. The initial issue to be addressed is the overall street layout for the property. Additional access onto East Terrace and/or Quarry Hill Road have been long -debated issues. When rezoning of the property took place, one traffic study by Trans Op was prepared on this question. My recommendation is that the through connection between Quarry Hill Road and East Terrace is both appropriate, since additional residential traffic will not be excessive, and necessary, since both roads already are in excess of the normal maximum number of units on single -entrance roads. Some additional notes: If a through road is built, planning should be done now to insure that the grade down the Quarry Hill slope will be acceptable. There is another vacant 1.2 acre parcel owned by the Deslauriers property immediately adjacent to the proposed road, and plans for this parcel should be discussed. Memorandum Next week's agenda items 2/4/83 Page 3 Better delineation of site limitations - including Quarry location, contours, and zoning boundaries - will be necessary at the next stage of review. Lot lines should be perpendicular to the street wherever feasible. CITY OF SOUR BURLINGTON Subdivision Application - SKETCH PLAN 1) Name, address, and phone number of: a. Owner of record bC) t � n(-'sf : v f\C_ / A l�-My/ .(, U R b. Applicant P)A pIA- -v-- OO a-D TTRM t. c. Contact person P14 r ID0 MRMaj�) i ��P, zzZ3 �n 2) Purpose, location, and nature of subdivision or development, including number of lots, units, or parcels and proposed use(s). N-5D h� ��,� l �k� Pop, 51 f")LA- F-PQ Li � OWCi uN(;�, 3) Applicant's legal interest in the property (fee simple, option, etc) a 4) Names of owners of record of all contiguous properties i ,1:,.s4- T, /lR. 8At &HprN #40 7-C,7i-zC / DAj5S fcr,uce- 5) Type of existing or proposed encumbrances on property such as easements, covenants, leases, rights of way, etc. ��,�� b •e�-�X���� Coven t<�C-V k 0 6) Proposed extension, relocation, or modification of municipal facilities such as sanitary sewer, water supply, streets, storm drainage, etc. v 1�1 cin (G Tie, �A C i 11 -�-, 2� 7) Describe any previous actions taken by the Zoning Board of Adjustment or by the South Burlington Planning Commission which affect the proposed sub- division, and include the dates of such actions: F 8) Submit four copies of a sketch plan showing the following information: 1) Name of owners of.record of contiguous properties. 2) Boundaries and area of: (a) all contiguous land belonging to owner of record and (b) proposed subdivision. 3) Existing and proposed layout of property lines; type and location of existing and proposed restrictions on land, such as easements and cove- nants. 4) Type of, location, and approximate size of existing and proposed streets, utilities, and open space. I 5) Date, true north arrow and scale (numerical and graphic). 6) Location map, showing relation of proposed subdivision to adjacent property and surrounding area. R Ify)" (Signature) ip1li6ant or co /ct person da tLE TRAFFIC PLANNING STUDY OF QUARRY HILL SITE FOR PLANNING COMMISSION CITY OF SOUTH BURLINGTON SOUTH BURLINGTON, VERMONT TRANS/OP, INC. P. 0. Box 2304 South Burlington, Vermont 05401 November 1981 TRANS/OP INC. SYSTEMS ENGINEERS AND CONSULTANTS P. O. BOX 2304 - SOUTH BURLINGTON, VERMONT 05401 Phone: Mr. David H. Spitz City Planner South Burlington City Hall 575 Dorset Street South Burlington, Vermont 05401 Dear Mr. Spitz: (802) 878-5977 November 30, 1981 A preliminary traffic planning study was completed to assess the trip - generation impacts of five selected land use schemes for the Quarry Hill Site. In addition, selected level of service evaluations were prepared for three intersectional locations that provide access to the study site. Only worse - case situations were appraised in the analysis of the anticipated traffic conditions that would result from the development of this property that is located in an area defined as Commercial 1 District. Unfortunately, vehicular volume data are not available for the intersec- tions of Williston Road and the two driveways that serve Gaynes Shopping Center, the intersection of Spear Street and Quarry Hill Road, East Terrace Street, and ISpear Street. Calculations of service levels were, therefore, based on 1981 traffic volumes that were approximated from trip generations for critical com- binations of existing and proposed developments. Further analysis may be desired in assessing quantitatively the impacts of different planning schemes for the Quarry Hill Site on the signal -controlled, rotary intersection formed by East Avenue, East Terrace Street, Spear Street, and Williston Road. Please advise of any further assistance that may be de- sired in regard to the Quarry Hill Site. Thank you. JVery truly yours, Joseph C. Oppenlander, P.E. Vice -President JCO:rrb Enclosure or Vr p- /� G' OPf o No. 2672 S��tVAL EN TABLE OF CONTENTS Page INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 TRIP GENERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 TRAFFIC ANALYSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 S Ulvff4ARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 1 TRAFFIC PLANNING STUDY OF QUARRY HILL SITE INTRODUCTION The purpose of this traffic planning study was to assess potential impacts of vehicular volumes generated by a 26-acre site in a Commercial 1 District (C1) on selected adjacent intersections and driveway locations. This land parcel, which is identified as the Quarry Hill Site and is located in Figure 1 by the letter 'Q', is bounded by Gaynes Shopping Center on the north, Quarry Hill Club on the south, I89 on the east, and the residential area along the eastern side of East Terrace Street on the west. Various land -use arrangements, that embrace selected combinations of Residen- tial 4 District (R4), Residential 7 District (R7), and Commercial 1 District (Cl) areas for the Quarry Hill Site, were evaluated in terms of trip generations for average weekday and average a.m. and p.m. peak -hour time periods. The following Ifive development and access schemes were quantified in this preliminary traffic planning study. 1. Plan 1. a. R4 of 4.3 acres to East Terrace Street. b. R7 of 10.0 acres to Quarry Hill Road. C. Cl of 10.5 acres to driveways at Gaynes Shopping Center. 2. Plan 2. a. R4 of 4.3 acres to East Terrace Street. b. R7 of 10.0 acres. 1) With 20 percent to Quarry Hill Road. 2) With 80 percent to driveways at Gaynes Shopping Center. LEGEMD wvn ro.G .u•r.c[ ++.tt ' stu Mtoua 'cep, � R I CO LC ME S TEK 1 WI MOOSKI I .ITT _ _1 CITY or SOUTH KWLWGTOM n.rt ..,. •e.f,. ^� GENE54L .fa'fv.i+ 4AP �. ., .• CITY OF SOUTH BURLINGTON Figure 1 Locations of Quarry Hill Site and Study Intersections 45P T—t JSTOICT N0. 5 .M NOEM CCURT wrs.. I I t C. Cl of 10.5 acres. 1) With 20 percent to Quarry Hill Road. 2) With 80 percent to driveways at Gaynes Shopping Center. 3. Plan 3. a. R4 of 4.3 acres. 1) With 20 percent to Quarry Hill Road. 2) With 80 percent to East Terrace Street. b. R7 of 10.0 acres. 1) With 20 percent to Quarry Hill Road. I2) With 80 percent to East Terrace Street. c. Cl of 10.5 acres to driveways at Gaynes Shopping Center. 4. Plan 4. a. R4 of 1.3 acres to East Terrace Street. b. R7 of 3.0 acres to Quarry Hill Road. C. C1 of 20.5 acres to driveways at Gaynes Shopping Center. S. Plan S. a. R4 of 1.3 acres to East Terrace Street. b. R7 of 3.0 acres. 1) With 20 percent to Quarry Hill Road. 2) With 80 percent to driveways at Gaynes Shopping Center. c. Cl of 20.5 acres. 1) With 20 percent to Quarry Hill Road. 2) With 80 percent to driveways at Gaynes Shopping Center. Because vehicular volumes are not completely available for the various roadways and driveways that were evaluated in this study, trip generations were developed for existing and projected land use activities served by East Terrace Street, Quarry Hill Road, and the driveways at Gaynes Shopping Center. These forecasts 4 were calculated in accordance with the information provided in the Institute of Transportation Engineers publication entitled "Trip Generation", Second Edition, 1979. To quantify the traffic impacts of each tentative land use arrangement for the Quarry Hill Site, selected level of service analyses were prepared for the following intersectional locations, which are labeled in Figure 1 by the desig- nated letters from 'A' through 'D': 1. East Terrace Street approach, which is controlled by a 'YIELD' sign, at the rotary intersection of East Avenue, East Terrace Street, Spear Street, and Williston Road - 'A'; 2. Signalized intersection of Williston Road and entrance driveway at Gaynes Shopping Center - 'B'; and 3. Signalized intersection of Williston Road and exit driveway at Gaynes Shopping Center - 'C'. In addition, the trips generated by chosen land use arrangements for the Quarry Hill Site were assigned to a.m. and p.m. peak hour vehicular volumes at the sig- nalized rotary intersection of East Avenue, East Terrace Street, Spear Street, and Williston Road - 'D'. The required approach volumes were prepared for average 1981 travel conditions by combining appropriate trip generations with traffic count data collected by the Vermont Agency of Transportation. However, level of service evaluations for this complex intersection were not within the scope of this preliminary traffic planning study. 5 TRIP GENERATIONS Resultant trip generations for the five development plans of the Quarry Hill Site are presented in Tables 1 through 5. These trips were assigned to the three available access facilities that include East Terrace Street, Quarry Hill Road, and the two driveways at Gaynes Shopping Center. All calculations were predicated on complete development of the various land parcels within the Quarry Hill Site. In terms of vehicular volumes, Plans 4 and 5 account for the larger generations of traffic trips. A summary of trip generations by plan and access is provided in Table 6. Traffic impacts on East Terrace Street, Quarry Hill Road, and the drive- ways at Gaynes Shopping Center are minimized, respectively, by the land use arrange- ments in Plans 4 and 5, 3, and 2. For East Terrace Street, trip generations for Plans 1 and 2 are only slightly greater than those values for Plans 4 and 5, while Ia similar relationship exists for Plans 3 and 4 in regard to'the volume demands that are assigned to Quarry Hill Road. IPlan 2 affords the most favorable arrangement of land use activities as as- sessed in both magnitudes and patterns of trip generations. Traffic impacts are Iessentially minimized on East Terrace Street and the Gaynes driveways to and from IWilliston Road, while the assigned trips to Quarry Hill Road do not result in ad- verse vehicular volumes during a.m. and p.m. peak -hour periods of travel. M TABLE 1 TRIP GENERATIONS Quarry Hill Site Plan 1 Item Two-way Ave. a.m. Peak Hour p.m. Peak Hour Weekday Enter Exit Enter Exit (vpd) (vph ) (vph ) (vlh ) (vlh ) East Terrace Street 65 sf DU 650 18 34 42 23 Tennis club 341 7 2 8 25 4.3-acre R4 104 2 8 8 4 Total 1095 27 44 58 52 Quarry Hill Road 77 apt DU 470 9 37 36 18 Tennis club 298 6 2 7 22 10.0-acre R7 427 8 34 33 16 Total 1195 23 73 76 56 Driveways at Gaynes Shopping Center Existing Cl 6358 - - 293 319 10.5-acre C1 5706 - - 263 286 Total 12,064 - - 556 605 Combined Trips Grand total 14,354 50 117 690 713 7 TABLE 2 TRIP GENERATIONS Quarry Hill Site Plan 2 Item Two-way Ave. a.m. Peak Hour p.m. Peak Hour Weekday Enter Exit Enter Exit (vpd) (vph) (vph) (vph) (vph) East Terrace Street 65 sf DU 650 18 34 42 23 Tennis club 341 7 2 8 25 4.3-acre R4 104 2 8 8 4 Total 1095 27 44 58 52 Quarry Hill Road 77 apt DU 470 9 37 36 18 Tennis club 298 6 2 7 22 10.0-acre R7 (20%) 85 2 7 7 3 10.5-acre C1 (20%) 1141 - - 53 57 Total 1994 17 46 103 100 Driveways at Gaynes Shopping Center Existing C1 6358 - - 293 319 10.0-acre R7 (80%) 342 6 27 26 13 10.5-acre C1 (80%) 4565 - - 210 229 Total 11,265 6 27 529 561 Combined Trips Grand total 14,354 50 117 690 713 0 TABLE 3 TRIP GENERATIONS Quarry Hill Site Plan 3 Item Two-way Ave. a.m. Peak Hour p.m. Peak Hour Weekday Enter Exit Enter Exit (vpd) (vph) (vph) (vph) (vph) East Terrace Street 65 sf DU 650 18 34 42 23 Tennis club 341 7 2 8 25 4.3-acre R4 (80%) 83 2 6 6 3 10.0-acre R7 (80%) 342 6 27 26 13 Total 1416 33 69 82 64 Quarry Hill Road 77 apt DU 470 9 37 36 18 Tennis club 298 6 2 7 22 4.3-acre R4 (20%) 21 0 2 2 1 10.0-acre R7 (20%) 85 2 7 7 3 Total 874 17 48 52 44 Driveways at Gaynes Shopping Center Existing Cl 6358 - - 293 319 10.5-acre Cl 5706 - - 263 286 Total 12,064 - - 556 605 Combined Trips Grand total 14,354 50 117 690 713 TABLE 4 TRIP GENERATIONS Quarry Hill Site Plan 4 Item Two-way Ave. a.m. Peak Hour p.m. Peak Hour Weekday Enter Exit Enter Exit (vpd) (vph) (vph) (vph) (vph) East Terrace Street 65 sf DU 650 18 34 42 23 Tennis club 341 7 2 8 25 1.3-acre R4 30 1 2 2 1 Total 1021 26 38 52 49 Quarry Hill Road 77 apt DU 470 9 37 36 18 Tennis club 298 6 2 7 22 3.0-acre R7 128 3 10 10 5 Total 896 18 49 53 45 Driveways at Gaynes Shopping Center Existing Cl 5148 - - 319 344 20.5-acre Cl 9019 - - 558 603 Total 14,167 - - 877 947 Combined Trips Grand total 16,084 44 87 982 1041 TABLE 5 TRIP GENERATIONS Quarry Hill Site Plan 5 Item Two-way Ave. a.m. Peak Hour p.m. Peak Hour Weekday Enter Exit Enter Exit (vpd) (vph) (vph) (vph) (vph) East Terrace Street 65 sf DU 650 18 34 42 23 Tennis club 341 7 2 8 25 1.3-acre R4 30 1 2 2 1 Total 1021 26 38 52 49 Quarry Hill Road 77 apt DU 470 9 37 36 18 Tennis club 298 6 2 7 22 3.0-acre R7 (20%) 26 1 2 2 1 20.5 acre C1 (20%) 1804 - - 112 121 Total 2598 16 41 157 162 Driveways at Gaynes Shopping Center Existing C1 5148 - - 319 344 3.0-acre R7 (80%) 102 2 8 8 4 20.5-acre C1 (80%) 7215 - - 446 482 Total 12,465 2 8 773 830 Combined Trips Grand total 16,084 44 87 982 1041 11 TABLE 6 TRIP GENERATION SUMMARY Quarry Hill Site All Plans Access Two-way Average Weekday Trips (vpd) Route Plan 1 Plan 2 Plan 3 Plan 4 Plan 5 East Terrace Street 1095 1095 1416 1021 1021 Quarry Hill Road 1195 1994 874 896 2598 Gaynes driveways 12,064 11,265 12,064 14,167 12,465 Total 14,354 14,354 14,354 16,084 16,084 12 TRAFFIC ANALYSES Level of service evaluations were performed to assess the land use plans that provide worst -case traffic conditions at selected intersections which serve the Quarry Hill Site. The East Terrace Street approach experiences the greatest traffic demand during the a.m. peak hour for Plan 3. However, this yield -controlled movement should operate at 'A' level of service for 1981 traffic volumes with com- plete development of the Quarry Hill Site in accordance with the land use stipula- tions of Plan 3. Critical traffic loadings are produced by Plan 4 duirng`the p.m. peak hour for the entrance and exit driveways that serve Gaynes Shopping Center. The large amount of commercial development in this land plan results in 'E' levels of service for both driveways with 1981 vehicular volumes that include total development of the Quarry Hill Site. This critical movement analysis for traffic planning pur- poses was based on the provision of a fifth lane on Williston Road for left -turn maneuvers. To accommodate this level of commercial development in the Quarry Hill Site with ingress and egress provided by the two driveways at Gaynes Shopping Center, significant redesign of these traffic facilities is required in the form of multiple turning lanes for critical entrance and exit movements. However, vehicular volume studies at these driveways are essential to establish the traffic magnitudes and patterns before exact traffic improvements can be developed. The adoption of Plan 2 for the Quarry Hill Site does minimize the traffic impacts on Williston Road at Gaynes Shopping Center driveways. Although critical movement calculations were not performed for traffic conditions associated with Plan 2, levels of service at these driveway intersections are approximated in the high 'C' or low 'D' range. To provide intersectional approach volumes, traffic assignments were developed at the rotary intersection of East Avenue, East Terrace Street, Spear Street, and 1 Williston Road. Existing, development, and total volumes for a.m. and p.m. peak 13 hours during 1981 are summarized by approach in Tables 7 through 10 for Plan 4, which provides the most critical impact on traffic conditions at this rotary in- tersection and along Williston Road at Gaynes Shopping Center. Vehicular volumes for a.m. and p.m. peak hours are described, respectively, in Tables 7 and 8 for the east intersection of this rotary complex, while the corresponding measures for the west intersection are listed in Tables 9 and 10. Critical movement analyses for these two intersections that form portions of the rotary arrangement were beyond the scope of this traffic planning study. ITABLE 7 I 1981 INTERSECTION APPROACH VOLUMES East Avenue, East Terrace Street, and Williston Road a.m. Peak Hour ITraffic Movement (vph) Component Left turn Straight Right turn Total IEast Terrace Street Approach Existing 68 159 72 299 IDevelopment 17 41 19 77 Total 85 200 91 376 Percent total 23 53 24 100 Williston Road - East Approach IExisting - 790 552 1342 Development - - 4 4 ITotal - 790 556 1346 Percent total - 59 41 100 Williston Road - West Approach Existing - 612 - 612 Development _ - - - Total - 612 - 612 Percent total - 100 - 100 14 i a ITABLE 8 1981 INTERSECTION APPROACH VOLUMES East Avenue, East Terrace Street, and Williston Road ITraffic Movement (vph) Component Left turn Straight Right turn East Terrace Street Approach Existing 56 56 92 IDevelopment 23 23 60 Total 79 79 152 IPercent total 25 25 50 Williston Road - East Approach IExisting - 982 414 Development - 318 142 ITotal - 1300 556 Percent total - 70 30 IWilliston Road - West Approach Existing - 1732 - I Development 397 Total - 2129 - IPercent total - 100 - p.m. Peak Hour Total 204 106 310 100 1396 460 1856 100 1732 397 2129 100 15 16 TABLE 9 1981 INTERSECTION APPROACH VOLUMES East Avenue, Spear Street, and Williston Road I Traffic Movement (vph) Component Left turn Straight Right turn IEast Avenue Approach Existing 194 102 30 I Development 24 Total 194 126 30 I Percent total 55 36 9 IWilliston Road --East Approach Existing - 858 - Development - 17 I Total 875 = total - 100 - IPercent Williston - Road West Approach IExisting - 418 69 Development - - 16 Total - 418 85 I Percent total 83 17 a.m. Peak Hour Total 326 24 350 100 858 17 875 100 487 16 503 100 17 TABLE 10 1981 INTERSECTION APPROACH VOLUMES East Avenue, Spear Street, and Williston Road Traffic Movement (vph) Component Left turn Straight Right turn East Avenue Approach Existing 461 244 44 Development 106 83 - Total 567 327 44 Percent total 60 35 5 Williston Road - East Approach Existing - 1039 - Development - 341 - Total - 1380 - Percent total - 100 - Williston Road - West Approach Existing - 1270 134 Development - 291 33 Total - 1561 167 Percent total - 90 10 p.m. Peak Hour Total 749 189 938 100 1039 341 1380 100 1404 324 1728 100 SUMMARY This impact assessment of five land use schemes for the Quarry Hill Site was limited to the evaluation of traffic conditions for selected locations and worst - case situations. The arrangement of land uses that are depicted by Plan 2 mini- mizes the generated trips in terms of magnitudes and patterns among their distri- butions to adjacent traffic facilities. Better travel conditions are achieved by limiting the amount of commercial development and by reducing the need for access directly to and from Williston Road. Further transportation planning studies are essential to develop proper geo- metric design and/or traffic control improvements that allow for the planned growth in this portion of South Burlington with acceptable levels of travel service on adjacent streets and at access intersections. Vehicular volume studies are 1 necessary to describe completely the existing temporal demands for traffic move- ments on the impacted transportation facilities.