The Shoppes at Forney Crossings

Transcription

1 F M 548 U.S. HWY 80 U.S. HWY 80 F M 688 F M 548 COOL SPRINGS F M 1641 F M 548 TROPHY BUGLE CALL PHESANT WHITE PORCH SPINAKER The Shoppes at Forney Crossings

2 18' 14'-8" 18' 15' " 14' 7'

3 23'-0" 21'-0" 24'-9 1/2" 6'-3 3/8" 24'-10 7/8" 9'-6 1/8" 3'-4 3/8" 14'-9 1/4" A-2.3 A '-0" 19'-0" 23'-0" 23'-0" 10'-0" 23'-0" 21'-0" Project number Date A-3.1 Drawn by Author Checked by Checker Scale 1/8" = 1'-0" 1/29/ :26:42 AM 33'-4 3/4" L:\ARCHITECTURE\Jobs\Architecture Second Copy\Architecture\2015 Forney\Drop Ins\Forney Village\ Forney Crossings\SFC.rvt EXTERIOR ELEVATIONS - ELEVATION A THE SHOPPES AT FORNEY CROSSINGS EAST ELEVATION 1/8" = 1'-0" NORTH ELEVATION 1/8" = 1'-0" WEST ELEVATION 1/8" = 1'-0" SOUTH ELEVATION 1/8" = 1'-0" MASONRY CALCULATIONS BRICK: SQ. FT. STONE: 598- SQ. FT. TOTAL: SQ. FT. % OF MASONRY: 100% No. Date

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5 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) Traffic Technical Memorandum (Engineering Study) for Shoppes at Forney Crossings on FM 548 in Forney David J. Boski Engineering has been contracted to analyze the traffic impact that a proposed retail development (Shoppes at Forney Crossings) will have on FM 548 in Forney TX. The purpose of this technical memorandum is to provide the City of Forney and the Texas Department of Transportation with an engineering study concerning the existing AM and PM traffic at the FM 548/FM 548 (FM 1641) and FM 548/E. Broad (FM 688) intersections, level-ofservice analysis at both intersections for build-out and horizon year, trip generation and distribution for the new development, deceleration lane analysis and a sight distance analysis at the proposed access point. Below are the results of this analysis. Project Location, Roadway Characteristics and Speed Limit This development is located on FM 548 (south of U.S Hwy 80) in Forney and is bordered by railroad tracks to the north, FM 548 to the east and south and the old FM 1641 right-of-way to the west. FM 1641 continues south of this site. The land use to the east and west of this site is undeveloped land (east zoned Commercial, west zoned Planned Development), to the south is single family residential and to the north across the railroad track is retail/commercial. FM 548 on the east side of the development is a 4 lane concrete curb and gutter divided roadway (10 foot wide center median) with 2 twelve foot travel lanes and 1 foot inside and outside shoulders in each direction. The pavement and markings are in good condition. The speed limit on this section of FM 548 is posted at 50 MPH. The southbound right lane is a right turn only lane at FM 548. FM 548 on the south side of the development is 2 lane undivided asphalt roadway with numerous left turn lanes. The main pavement section contains 2 twelve foot lanes (one each direction) and 8 foot shoulders on both sides. At its intersection with northbound FM 548, the intersection contains one westbound lane, two eastbound left turn lanes and an eastbound right turn lane. The pavement and markings are in good condition. The speed limit on this section of roadway is 55 MPH. The FM 548/548 intersection is signalized. The roadways in the vicinity of this development are relatively flat with slight horizontal curves. An aerial view along with a close up of this project location and roadway is presented in Exhibits #1and #2. TxDOT Technical Memo 548.doc FM 548, Forney Page 1 of 16

6 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) Traffic Signal Railroad Tracks Project location Exhibit #1 Location Map TxDOT Technical Memo 548.doc FM 548, Forney Page 2 of 16

7 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) Old FM 1641 ROW RR Crossing Proposed Shoppes at Forney Crossing Development Traffic Signal Exhibit #2 Close up location Site Layout and Driveway Spacing This development will contain approximately 14,800 square feet of retail use (unknown users) on 1.6 acres of land. The land area of the property forms a triangle and is bounded by the RR tracks to the north, the old FM 1641 ROW on the west and FM 548 on the east. Due to the unique layout of the property the only available access point will be on the east side of the property to access the 4 lane divided section of FM 548. The proposed access point on FM 548 will function as a right-in/right out due to the raised median on FM 548. The proposed access point will be located approximately 275 feet north of the FM 548/FM 548 intersection (330 feet south of the railroad crossing and 390 feet south of E. Broad Street). The driveway will be 30 feet wide with 20 foot radii. The driveway access spacing does not meet TxDOT s Spacing Criteria (425 feet required) as presented in the TxDOT Access Manual for a 50 MPH speed limit. Due to the unique geometry of the property, location of the railroad crossing to the north, the need to provide a fire lane around the building which would align with driveway and the driveway being located on the approach side of signal controlled intersection a variance is requested to approve the TxDOT Technical Memo 548.doc FM 548, Forney Page 3 of 16

8 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) proposed driveway location. This will be the only driveway on southbound FM 548 between E. Broad Street and FM 548. The proposed driveway spacing does meet the spacing requirements outlined in the City of Forney Engineering Design Manual. A layout of this development is presented in Exhibit #3 and in the back of this report. Exhibit #4 shows the proposed driveway spacing. FM 688 Exhibit #3 Site Plan TxDOT Technical Memo 548.doc FM 548, Forney Page 4 of 16

9 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) Proposed Driveway Location 390 feet to E. Broad Street (FM 688) 330 feet to RR crossing 275 feet to intersection Sight Distance Analysis Exhibit #4 Proposed Driveway Location A sight distance analysis was conducted at the proposed access point on FM 548. Google Map Street View pictures from the proposed access location are shown in Exhibits #5 and #6. Since a raised median exists in FM 548, traffic can only travel in one direction thus the proposed access point was evaluated for stopping sight distance and right turn from stop criteria for a 50 MPH speed limit. The required sight distance for each scenario is shown in Table #1. Sight Distance Summary Scenario Required Stopping Sight Distance Required Intersection Sight Distance Sight distance met Right turn from stop 425 feet 480 feet Yes 480+ feet Table #1 TxDOT Technical Memo 548.doc FM 548, Forney Page 5 of 16

10 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) The visibility available from the proposed access point was over 480 feet looking to the north. This distance meets AASHTO s required stopping sight distance of 425 feet and the right turn movement sight distance of 480 feet for the 50 MPH posted speed limit sight distance Exhibit #5 View from proposed driveway looking north TxDOT Technical Memo 548.doc FM 548, Forney Page 6 of 16

11 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) feet to intersection Exhibit #6 - View from proposed driveway looking south Traffic Counts AM and PM peak hour turning movement counts were collected at the intersections of E. Broad Street/FM 548 and FM 548/FM 548 on Wednesday October 14, 2015 by Accurate Counts. The collected turning movement counts can be seen in Tables #2 and #3. East Broad Street/FM 548 Traffic Counts EB EB SB Right SB Thru NB Left NB Thru Right Left AM Peak PM Peak , Table #2 TxDOT Technical Memo 548.doc FM 548, Forney Page 7 of 16

12 David J. Boski Engineering, PLLC F-8922 FM 548/FM 548 Traffic Counts 2624 Castle Road Burleson, TX Tel.: (817) EB Right EB Left SB Right SB Thru NB Left NB Thru AM Peak PM Peak Table #3 The traffic counts indicate an AM peak on the north/south portion of FM 548 near the FM 548 intersection of 2,126 vehicles (1,110 NB and 1,016 SB 52%/48% distribution) and a PM peak of 2,424 vehicles (1,096 NB and 1,398 SB 44%/56% distribution). The AM peak on the east/west portion of FM 548 near the FM 548 intersection had 1,390 vehicles (620 EB and 770 WB 45%/55% distributions) and a PM peak of 1,576 vehicles (676 EB and 900 WB 43%/57% distribution). The AM peak hour on FM 548 is 7:00 to 8:00 am and the PM peak hour is 5:00 to 6:00 pm. Trip Generation Trip generation for this proposed development was performed for the anticipated land uses (retail) using the Institute of Transportation Engineers (ITE) Trip Generation Manual 9 th Edition for Shopping Center ITE Land Use #820. The trip generation is based upon the proposed site plan that contains 14,832 square feet of retail space. The average trip generation rate was used. The average rate was chose over the regression equations based upon the ITE recommended practice that if the standard deviation for the weighted average rate is less than 110% of the weighted average rate than the rate is to be used. In this case, Shopping Center use meets the criteria. Table #4 below depicts the Daily, AM and PM peak hour trip generation equations and distributions for this development as provided by the ITE Trip Generation Manual. Category/ITE Use Trip Generation Rates/Equations and Distributions Daily Trip Rate/ Distribution % In/Out AM Trip Rate*/ Distribution % In/Out PM Trip Rate*/ Distribution % In/Out Shopping Center # per 1,000 sq ft 50/ per 1,000 sq ft 62/ per 1,000 sq ft 48/52 Table #4 *peak hour of adjacent traffic Table #5 indicates the total trips generated by this development based upon the assumptions listed above. TxDOT Technical Memo 548.doc FM 548, Forney Page 8 of 16

13 David J. Boski Engineering, PLLC F-8922 Shoppes at Forney Crossings Trip Generation 2624 Castle Road Burleson, TX Tel.: (817) Category/ITE Use Shopping Center #820 Total Trips Total Traffic In/Out Sq. Footage 14,832 sq. ft. Daily Trips /316 AM Peak Trips /5 PM Peak Trips /29 Trip Distribution/Traffic Growth Table #5 Trip distribution to and from the site were based upon the layout of the development and the collected traffic counts. Since this development only has one access point onto southbound FM 548 all site traffic will use this driveway. Based upon collected traffic counts, 45% of the traffic will come from the north, 25% will come from the south and 30% will come from the west. For the west traffic it was assumed, based on the counts that 15% during the AM peak and 25% during the PM peak would use E. Broad Street (FM 688) and 85% during the AM peak and 75% during the PM peak would use FM 548. All traffic from the south and west on FM 548 that will be entering the site will need to make a U-turn at the FM 548/E. Broad Street intersection. All traffic exiting the site and heading north will make a U-turn at FM 548/FM 548 intersection. Exhibit #7 illustrates these traffic distributions. The entire development will be constructed and open for business by To predict background traffic 5 years in the future on the adjacent roadways the TxDOT Statewide Planning Map was used to determine a growth rate. Traffic volumes in the vicinity on FM 548 were not available however counts on FM 688 (E. Broad Street) just north of this development were available from year 2007 (4,600 vehicles a day) to year 2012 (6,000 vehicles a day). Based upon the available data a 4.5% growth rate was used to predict future background traffic volumes FM 548. TxDOT Technical Memo 548.doc FM 548, Forney Page 9 of 16

14 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) North = access location 45% total traffic volume from north 15% AM 25% PM of west traffic 30% total traffic volume from west Development location 85% AM 75% PM of west traffic 25% total traffic volume from south Exhibit #7 - Traffic Distribution Site Turning Movements and Auxiliary Lane Analysis Based upon the traffic distribution and assumptions listed previously, Exhibit #8 shows the anticipated site generated peak hour turning movement traffic volumes at the build out of the development (year 2016). Exhibit #9 shows the background traffic at build-out (2016), background with site traffic (2016) and future traffic (5 years year 2021) with site. With the right-in/right-out driveway for the development a few U-turns will be produced at the median openings north and south of this development (4 AM and 12 PM at E. Broad and 3 AM and 16 PM at FM 548). TxDOT Technical Memo 548.doc FM 548, Forney Page 10 of 16

15 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) AM 12 PM 4 AM 12 PM 1 AM 3 PM Proposed access 9 AM 26 PM 317 Daily 5 AM 29 PM 316 Daily 3 AM 16 PM 1AM 6 PM 2 AM 6 PM Exhibit #8 Site Generated Turning Movements TxDOT Technical Memo 548.doc FM 548, Forney Page 11 of 16

16 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) LEGEND Background volume Background + Site 2021 Background +Site 0 AM/0 PM 4AM/12 PM 4 AM/12 PM 77 AM/227 PM 78 AM/229 PM 101 AM/297 PM 149AM/98 PM 150 AM/101 PM 195 AM/131 PM Proposed access 0 AM/0 PM 9 AM/26 PM 9 AM/26 PM 0AM/0 PM 5 AM/29 PM 5 AM/29 PM 0 AM/0 PM 3 AM/16 PM 3 AM/16 PM 654 AM/786 PM 655 AM/792 PM 853 AM/1030 PM 547 AM/618 PM 549 AM/624 PM 714 AM/811 PM Exhibit #9 Background and Background/Site generated peak hour turning movements A deceleration lane analysis was performed for this development s proposed access point on FM 548. Table 2-3 of the TxDOT Access Management Manual was used as a basis for the analysis of the auxiliary lanes. The analysis was based upon the posted 50 MPH speed limit. Table #6 reflects the results of the auxiliary lane analysis. Deceleration Lane Analysis Entrance AM peak hour right turns into the development PM peak hour right turns into the development TxDOT Threshold for deceleration lane (vph) TxDOT Threshold met FM vph No Table #6 TxDOT Technical Memo 548.doc FM 548, Forney Page 12 of 16

17 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) The right-turn ingress movements generated by this development at the FM 548 access point do not exceed the TxDOT threshold of 50 vph for a deceleration lane. Street Intersection Level-of-Service Analysis AM peak hour and PM peak hour intersection levels-of-service analysis were performed for the FM 548/E. Broad Street and FM 548/FM 548 intersections using Synchro 9 traffic signal simulation software which is based upon Highway Capacity methodology for the level-of-service. The intersection level-of-service analysis along with intersection capacity utilization for the oneway stop controlled intersection of FM 548/E. Broad Street was investigated along with the levelof-service and intersection delay for the signalized intersection of FM 548/FM 548. The analysis includes build out year (2016) with and without site traffic and 5 years in the future with and without the site traffic (year 2021). As stated previously a 4.5% growth rate was used to predict future background traffic volumes. Previous Exhibit #8 showed the site traffic that will be added to the intersections and Tables #6 and #7 show the level-of-service at the intersections in build out year (2016) and at horizon year (2021) Intersectio n E. Broad/FM 548 E. Broad/FM 548 E. Broad/FM 548 Intersection (Approach) Level-of-Service Build Out Build Out Year 2021 Year 2016 Year 2016 Without Site Existing With Site Traffic Traffic Traffic Time Analyzed AM Peak PM Peak Intersection LOS/(Capacity Utilization) C (67.1%) D (75.7%) Intersection LOS/(Capacity Utilization) Table #6 C (67.2%) E (83.7%) Intersection LOS/(Capacity Utilization) E (84.3%) F (105.8%) Build Out Year 2021 With Site Traffic Intersection LOS/(Capacity Utilization) E (84.4%) F (105.9%) TxDOT Technical Memo 548.doc FM 548, Forney Page 13 of 16

18 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) Intersection Time Analyzed FM 548/FM 548 Level-of-Service Build Out Build Out Year 2016 Year 2016 Existing With Site Traffic Traffic Intersection LOS/(delay - seconds) Intersection LOS/(delay - seconds) Year 2021 Without Site Traffic Approach LOS/(delay seconds)) Build Out Year 2021 With Site Traffic Approach LOS/(delay seconds) FM 548/FM 548 AM Peak B (10.6) B (10.6) C (25.8) C (25.8) FM 548/FM 548 PM Peak B (16.8) B (18.8) D (49.9) D (49.9) Table #7 The intersection of E. Broad/FM 548 currently operates at a level-of-service (LOS) of C and D during the AM and PM peak hours. Due to the potential U-turns from this development the LOS drops to E in the PM peak with this development. At 5 years in the future (year 2021) the AM peak will function at an LOS of E and PM peak function at F with or without site traffic due to the intersection being over capacity in the PM peak hour. It is recommended that a more in depth investigation be conducted in the next few years to determine if an installation of the traffic signal at that location will help improve operations. The intersection of FM 548/FM 548 currently operates at a level-of-service of B during the AM and PM peak hours and will continue to do so with build-out of this development. At 5 years in the future (year 2021) the AM peak will function at an LOS of C and PM peak function at D with or without the site traffic. This development will not have any significant impact on the FM 548/FM 548 intersection. Summary/Recommendations This development is located on FM 548 (south of U.S Hwy 80) in Forney and is bordered by railroad tracks to the north, FM 548 to the east and south and the old FM 1641 right-of-way to the west. FM 1641 continues south of this site. This development will contain approximately 14,800 square feet of retail use (unknown users) on 1.6 acres of land and is anticipated to be built out by the year The land area of the property forms a triangle and is bounded by the RR tracks to the north, the old FM 1641 ROW on the west and FM 548 on the east. Due to the unique layout of the property the only available access point will be on the east side of the property to access the 4 lane divided section of FM 548. The proposed access point on FM 548 will function as a right-in/right out due to the raised median on FM 548. The proposed access point will be located approximately 275 feet north of the FM 548/FM 548 intersection (330 feet south of the railroad crossing and 390 feet south of E. Broad Street). The driveway will be 30 feet wide with 20 foot radii. The driveway access spacing does not meet TxDOT s Spacing Criteria (425 feet required) as presented in the TxDOT Access Manual for a 50 MPH speed limit. Due to the unique geometry of the property, location of the TxDOT Technical Memo 548.doc FM 548, Forney Page 14 of 16

19 David J. Boski Engineering, PLLC F-8922 TxDOT Technical Memo 548.doc FM 548, Forney Page 15 of Castle Road Burleson, TX Tel.: (817) railroad crossing to the north, the need to provide a fire lane around the building which would align with driveway and the driveway being located on the approach side of signal controlled intersection a variance is requested to approve the proposed driveway location. This will be the only driveway on southbound FM 548 between E. Broad Street and FM 548. The proposed driveway spacing does meet the spacing requirements outlined in the City of Forney Engineering Design Manual. The location of the driveway places it approximately 50 within the white solid lane markings for the right turn only lane, it is recommended to remove the solid white lane markings in the vicinity of the driveway and place skip white pavement markings in this location. This striping modification will not impact the southbound right turn only traffic. The visibility available from the proposed access point was over 480 feet looking to the north. This distance meets AASHTO s required stopping sight distance of 425 feet and the right turn movement sight distance of 480 feet for the 50 MPH posted speed limit. The traffic counts indicate an AM peak on north/south portion of FM 548 near the FM 548 intersection of 2,126 vehicles (1,110 NB and 1,016 SB 52%/48% distribution) and a PM peak of 2,424 vehicles (1,096 NB and 1,398 SB 44%/56% distribution). The AM peak on the east/west portion of FM 548 near the FM 548 intersection had 1,390 vehicles (620 EB and 770 WB 45%/55% distributions) and a PM peak of 1,576 vehicles (676 EB and 900 WB 43%/57% distribution). The AM peak hour on FM 548 is 7:00 to 8:00 am and the PM peak hour is 5:00 to 6:00 pm. At build out (year 2016) the retail development will generate an additional 633 daily trips, 14 AM and 55 PM peak hour trips. Based upon the layout of the development, land uses and access locations it is projected the right-turn ingress movements generated at the proposed access point on southbound FM 548 (9 AM and 26 PM) do not exceed the TxDOT deceleration threshold of 50 vph for a 50 MPH speed limit. Thus a right-turn deceleration lane at the proposed FM 548 access point is not recommended. The intersection of E. Broad/FM 548 currently operates at a level-of-service (LOS) of C and D during the AM and PM peak hours. Due to the potential U-turns from this development the LOS drops to E in the PM peak with this development. At 5 years in the future (year 2021) the AM peak will function at an LOS of E and PM peak function at F with or without site traffic due to the intersection being over capacity in the PM peak hour. It is recommended that a more in depth investigation be conducted in the next few years to determine if an installation of the traffic signal at that location will help improve operations. The intersection of FM 548/FM 548 currently operates at a level-of-service of B during the AM and PM peak hours and will continue to do so with build-out of this development. At 5 years in the future (year 2021) the AM peak will function at an LOS of C and PM peak function at D with or without the site traffic. This development will not have any significant impact on the FM 548/FM 548 intersection. In addition with the unique nature of the roadway cross section (10 wide center median and no turn lanes) consideration should be giving to expanding the roadway cross section in the future to provide for left turn lanes at the Broad Street and FM 548 intersections. The property on east side

20 David J. Boski Engineering, PLLC F Castle Road Burleson, TX Tel.: (817) contains 20+ acres zoned commercial which is currently undeveloped but once the property is developed it will generate a significate number of left and U-turns at these 2 intersections. Calculations and data stated in this document are provided in back of the report If you have any questions regarding this analysis please do not hesitate to call me at Sincerely, David J. Boski, P.E. TxDOT Technical Memo 548.doc FM 548, Forney Page 16 of 16

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