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Home My WebLink AboutAMEND 2018-0003; COASTLINE COMMUNITY CHURCH - 1ST AMENDMENT; TRAFFIC LETTER REPORT; 2003-11-10TRAFFIC LETTER REPORT COASTLINE COMMUNITY CHURCH CARLSBAD, CALIFORNIA November 10, 2003 Prepared by: LINSCOTT LAW & GREENSPAN ENGINEERS 1565 Hotel Circle South, Suite.310 San Diego, CA 92108 (619) 299-3090 3-03-1309 JR AUG O 7 2018 CITY c::.:: C:\ ·;,i ,. ·, ·1 PLNJNIN(3 Olv i LINSCOTT LAW & GREENSPAN ENGINEERS ENGINEERS & PLANNERS• TRAFFIC, TRANSPORTATION, PARKING 1565 Hotel Circle South, Suite 310, San Diego, California 92108 Telephone: 619.299.3090 • Fax: 619.299. 7041 November 10, 2003 Mr. Jim Peevey Grant General Contractors 5051 Avenida Encinas P.O. Box 979 Carlsbad, CA 92008 SUBJECT: Coastline Community Church Traffic Letter Report Dear Mr. Peevey: Philip M. Linscott, P.E. (1924- Jack M. Greenspan, P.E. William A. Law, P.E. Paul W. Wilkinson, P.E. John P. Keating, P.E. David S. Shender, P.E. John A. Boarman, P.E. Clare M. Look-Jaegar, P.E. The following traffic letter report reviews the compatibility of land use for the Coastline Community Church, documents the anticipated traffic generation and compares this generation to the traffic generation in the Arroyo La Costa Master Plan. This report is structured with figures and attachments following the text. PROJECT DESCRIPTION The Coastline Community Church is planned with a sanctuary of 13,217 square feet with 500 seats ·for worship, a classroom building of 17,749 square feet with church administration offices and youth activity rooms, community buildings of 6,415 square feet, and an open (non-enclosed) garden chapel of approximately 800 square feet. The classrooms and youth activity rooms will be used for Sunday school. The total building square footage of 38,181 square feet was used in the traffic generation calculations. The project is located on the southeast corner of Calle Barcelona and Paseo Aliso as shown in Figure 1. A site plan is shown in Figure 2. LINSCOTT LAW & GREENSPAN ENGINEERS Mr. Jim Peevey Coastline Community Church 11/10/03 Page 2 PROJECT COMPATIBILITY WITH THE ARROYO LA COSTA MASTER PLAN The Coastline Community Church is planned for construction within Village J of the Arroyo La Costa Master Plan. The Arroyo La Costa Master Plan designated Village J as a church site. Copies from the Master Plan are included in Attachment A. PROJECT TRAFFIC GENERATION SANDAG trip generation rates (source date April 2002) and the Institute of Transportation Engineers "Trip Generation -6th Edition" were used to calculate the traffic generation for the Coastline Church and to document the generation rate for single-family dwelling units used later in this report. Saturday AM or Sunday PM peak hour trips rates were not available from SANDAG or ITE. The traffic generation rates are summarized in Table 1. Table 1 SANDAG T . G f R t fl J enera I0n a es Land Use ADT Rate AM Peak Hour PM Peak Hour Percent of IN OUT Percent IN OUT ADT SPLIT ofADT SPLIT Church (Weekday) 9/1000 SF1 5% 60 40 8% 50 50 Church (Saturday) 9.7/1000 SF2 NA NA NA 34% 74 26 Church (Sunday) 36.6/1000 SF:.: 26% 51 49 NA NA NA Single-Family Dwelling 10/DU11 8% 30 70 10% 70 30 • 1 ii. ,m .. Source. SANDAG April 2002 Traffic Generation Rates. ITE Trip Generation 6 Edition. ADT. Average Daily Traffic Volume. The Single-Family and weekday Church AM peak hour is the highest hour of traffic between 6 and 9:30 AM while the PM peak hour is the highest hour of traffic between 3 and 6:30 PM. The Sunday Church AM peak hour is the highest hour between 9 AM and 1 PM while the Saturday Church PM peak hour is the highest hour between 5 PM and 8 PM. JN:OUT designation defines the split of inbound and outbound traffic (40:60 means 40% In and 60% out). NA-Not Available. The weekday project traffic generation is calculated at 344 ADT with 17 AM peak hour trips (10 inbound and 7 outbound) and 28 PM peak hour trips (14 inbound and 14 outbound) during a weekday. Saturday traffic generation is calculated at 370 ADT with 126 PM peak hour trips (93 inbound and 33 outbound). Sunday traffic generation is calculated at 1,379 ADT with 363 AM peak hour trips (185 inbound and 178 outbound). The traffic generation rates are summarized below in Table 2. LINSCOTT LAW & GREENSPAN ENGINEERS Table 2 ro1ec ra 1c enera ,on P . tT ff G f Land Use ADT Church-38,181 Total S.F. (Weekday) 344 Church -38, 181 Total S.F. (Saturday) 370 Church-38,181 Total S.F. (Sunday) 1,397 Source: LLG Engineers. NA -Not Available. Mr. Jim Peevey Coastline Community Church 11/10/03 Page 3 AM Peak Hr PM Peak Hr IN OUT IN OUT 10 7 14 14 NA NA 93 33 185 178 NA NA COMPARISON OF PROJECT TRAFFIC TO THE ARROYO LA COSTA MASTER PLAN The Arroyo La Costa Master Plan Traffic Impact Analysis accounted for 1,862 dwelling units. The current number of dwelling units within the Arroyo La Costa Master Plan is 1,643 dwelling units based on the LFMP Zone 12 growth management numbers. Copies from these reports and maps showing the boundaries of the Arroyo La Costa area and LFMP Zone 12 are included in Attachment B. According to these documents, the traffic analysis for the Arroyo La Costa Master Plan accounted for more dwelling units than documented in the LFMP Zone 12 growth management numbers. The weekday traffic generation from the surplus of 219 dwelling units is calculated at 2, 190 ADT with 175 AM peak hour trips and 219 PM peak hour trips. As shown in Table 2, the proposed Coastline Community Church is calculated to generate 344 ADT with 17 AM peak hour trips and 28 PM peak hour trips. The weekday Church traffic generation is well within the surplus of traffic for the Arroyo La Costa Master Plan as shown in Table 3. Table 3 P . t W kd T ff G f C roJec ee ay ra 1c enera 10n ompanson Land Use ADT AM Peak Hr PM Peak Hr IN OUT IN OUT Surplus (not built) Sinqle-Familv DUs (264 Units) 2,190 53 123 153 66 Church with 38,181 Total S.F. (Weekday) -344 -10 -7 -14 -14 Remaining Weekday Surplus Volume 1,846 43 116 139 52 Source: LLG Engineers. LINSCOTT LAW & GREENSPAN ENGINEERS CONCLUSIONS Mr. Jim Peevey Coastline Community Church 11/10/03 Page4 The Coastline Community Church is planned for construction within Village J of the Arroyo La Costa Master Plan. The Arroyo La Costa Master Plan designated Village J as a church site. During a weekday, the project is calculated to generate 344 ADT with 17 AM peak hour trips (10 inbound and 7 outbound) and 28 PM peak hour trips (14 inbound and 14 outbound) during the weekday. On a Saturday, the project is calculated to generate 370 ADT with 126 PM peak hour trips (93 inbound and 33 outb_ound). For a Sunday, the traffic generation is calculated at 1,379 ADT with 363 AM peak hour trips (185 inbound and 178 outbound). The traffic analysis for the Arroyo La Costa Master Plan accounted for more dwelling units than documented in the LFMP Zone 12 growth management numbers. This means the Church weekday traffic generation is within the surplus of traffic shown in the Arroyo La Costa Master Plan. Please call me at (619) 299-3090 if you have any questions or need further clarifications. Sincerely, LINSCOTT, LAW & GREENSPAN ~~-a~~ r:lustin Rasas, P. E. (C.E. 60690) (fi~nior Transportation Engineer RE.Y. 06/11 /03 LLG1290.DWG LINSCOTT LAW& GREENSPAN ENGINEERS NO SCALE. Figure 1 PROJECT AREA MAP COASTLINE COMMUNITY CHURCH ---______________ .,. .... ___ ----••u-•-.,,. _______ ---------------------•--------- -------- RE.V. 06/11 /03 LLG1290.DWG LINSCOTT LAW& GREENSPAN ENGINEERS CALLE BARCELLONA ... NO SCALE Figure 2 SITE PLAN COASTLINE COMMUNllY CHURCH LINSCOTT LAW & GREENSPAN ENGINEERS Attachment A Copies from Arroyo La Costa Master Plan 1. Village J is designated as a church site. This village is located south of Calle Barcelona, east of El Camino Real and north of the Rancho Ponderosa development. Neighborhood J has a gross area of 7.6 acres and a net developable area of 6.60 acres. The existing topography of this village slopes gently down northward towards the future alignment of Calle Barcelona. 2. Use Allocation 3. 4. Although this village carries the RLM General Plan Land Use (0-4 DU/acre), it has been designated as a church site by The Arroyo La Costa Master Plan. Any change in this designation would require an amendment as determined in the Amendments section of this Master Plan. As mentioned above, this village has a net usable acreage of 6.6 acres. The average church site in Carlsbad has a net usable acreage of two (2) acres. The site's unusual shape and some soils problems will require substantial grading and the possible use of retaining walls to develop this site to its full potential. For this reason, an alternative church site has been reserved in Vmage Q. If the Planning Commission does not approve a Site Development Plan for a church on this site, the site shall remain in permanent open space and the southern portion of Village Q shall be developed as a church site. Special Design Criteria All community-wide design standards described in the Community Development Standards section shall be implemented in this planning area. The following specific guidelines shall also be included for this planning area: Prior to any development on this site other than the grading required for Calle Barcelona, a Site Development Plan must be approved by the Planning Commission. The Church developed on this site shall be designed to take advantage of the existing topography with a minimal amount of grading Open Space/Trails A pedestrian/bike trail shall be constructed along Calle Barcelona. The exact details of the trail system are included in the Community 165 • Development Standards section of this Master Plan. The .trail shall be maintained by the community open space maintenance district. 5. Architecmrai Styie Toe architectural style of church structures shall be harmonious with, but not necessarily identical to, the architectural styles of Village I, Village Q, and the Junior High School site. The exact architecture for the church shall be approved by the Planning Director in a Site Development Plan review procedure . 166 • VILLAGE J Design Criteria a LEGEND • • • • Bikaway E3iiI Refined Slopes ■ ■ ■ ■ Concrete Sl~ewolk --VIiiage Boundary 167 I I I I I I I I I I I I I I TRAFFIC IMP ACT ANALYSIS FOR ARROYO IA COSTA MASTER PLAN IN TIIE CITY OF CARLSBAD, CALIFORNIA Prepared by the City of Carlsbad January, 1990 . ' .J I r/":. -~ i ~·< I IJ ll _;_ , •.. IJ IJ II IJ IJ II IJ 11 11 If Ii Table 7 shows the residential dwelling units for zone 12 under each scenario. Note that the prcpcsed project (Scena.110 2) resl!.!ts in a decrease of 27 dw~lliug units from that pr_ojected in the LF?v!P (Scenario 3). Trip (½neration Having ascertained future land use, the amount of traffic to be generated by the various land uses can be calculated. Trip generation rates for the proposed development were obtained from trip rates published by SANDAG (San Diego Association of Goyernments). Projected daily traffic generation is provided in Table 9. A summary of the daily, ·AM. peak hour, and P.M. peak hour trip generation is shown in Tables 10 and 11. -. The implementation of the proposed project will generate an estimated 19,000 daily trips based on the proposed number of dwelling units and non-residential land use. This figure was denved using generations.rates for the various land uses proposed and multip'lying'them by the land use mix of the proposed development. _; A total of 1830 trips will be made in the· AM. peak hour. A total of 1839 trips will be rp.ade in the P.M. peak hour. A trip is defined as a one-way movement to or from the project area. The above figures include the trips generated. by Ple two existing residential developments within the project area (3710 daily; 297 in the A.M. peak hour; and 371 in iti.t. P. r--t. r'9wrt. 110'-,r ). I -29 Ii TABLE 9 I PRQJECTED A VERAQE QAILY TRAFFIQ QENERATIQN Land Sub-Areas Number of Dwelling Daily Trip Average Daily :ow Use Units (DU) Rate Traffic I or Acres (AC) Generation (Numb~r of Trips) I Scenario Scenario Scenario Scenario Scenario 1 2 3 2 3 RLM 1 177DU 10/DU 1770 I 2 i74 10/DU 1740 3 126 10/DU 1260 4 41 10/DU 410 5 . 4 10/DU 40 ' 6 85 10/DU 850 7 419DU 240 10/DU 2400 8 131 131 10/DU 1310 t 9 107 10/DU 1070 RLM sub•total 550DU 1085 DU 993DU 10/DU 10850 9930 r RM 1 102DU 8/DU 816 2 131 8/DU 1048 3 320 8/DU 2560 4 39DU 61 8/DU 488 f 5 163 8/DU 1304 RM sub•total 39DU mou 608DU 8/DU 6216 4864 r RMH sub•total ODU ODU 288DU 6/DU 0 1728 E • Elem. School 12.BAC 12.BAC {5(J/AC 768 768 J •Jr.High 255 25.5 40/A,C 1020 1020 OS • Recreation 4.3 4.3 8/AC 34 34 OS· Park 49.2 49.2 5/AC 246 246 U · -Utility* 2.6 2.6 N/A . 0 0 t· Non• Residential sub -total 94.4AC 94.4AC 2068 2068 TotalADT 19134 18590 l • May be used for residential development in which case traffic generation from four or five DU's is insignificant. . · · .; T-9 11 .-.=::' l I I [ .TABLE 10 SUMMARY OF PROJECTED PEAK HOUR TRAFF1C FOR SCENARIO 2 Land Dwelling Daily Peak Hour Factors Trip Ends Trip Ends Use and Units or Traffic AJ.vi PM AM PM· AM P.M• Sub-area Acres Generation % Ratio % Ratio In Out In Out In Out In Out RLMl 177DU rno RLM2 174 1740 RLM3 126 1260 RLM4 41 410 RLM5 4 40 RLM6 85 850 RLM7 240 2400 RLM8 131 1310 RLM9 107 1070 RLM sub-total 1085 DU 10850 8% 2 8 10%7 3· 174 694 7(:IJ 326 RMl 102DU 816 RM2 131 1048 RM3 320 2560 RM4 61 488 RMS 163 1304 RM sub-total mnu 6216 8% 2 8 10% 7 3 99 398 435 186 RMH sub-total 0DU 0 8% 2 8 11% 7 3 0 0 0 0- ~* 12.8AC • 768 26% 6 4 5% 3 7 120 79 12 27 J* 25.5 1020 24% 7 3 7% 3 7 171 73 21 50 OS-R,. 4.2 34 4% 5 5 8% 5 5 1 1 1 1 OS -P,. 49.2 -246 4% 5 5 8% 5 5 5 5 10 10 Non-Res. sub-total 91. 7 AC 2068 297 158 44 88 Total 570 1250 1239 600. or 1820 1839 * E Elementary School ., J -Junior High School OS • R • Open Space Recreational OS -P • Open Space Park T-10 I .1 :!~ ---· i .,... __-,\_,,.:, /·7\ I .... ~-" ,. 1~·) ( E ~ 1 I / • t oN ; .r-,1 ~I Vf\J • Calculation of Excess Dwelling Units LFMP Existing Approved ·Future Projected Excess . Existing Quad. Bulldout *GMP Units Zone Units · Units Units !Jn!ts Units Excess ------1 <NW' 10,648 177 649 11,474 12,980 1,506 ~.006 2 NE 2,491 22 75 2,588 2,578 I (10 (10 3 .J:.JW 240 ' -12 252 186 (66 (66 4 SW 3,065 --····-----··.:.;1;065-= 3,029 -.-,::·::~-:. -·-· (36 (36) 5 SW 138 ---:--138 -{138 (138 6 SE 7,806 22 303 8,131 8,549 418 388 6 SW 506 --506 599 93 93 7 NE_ 1,620 -781 2,401 2,333 (68 (68 8 NW) 106 624 128 858 1,225 367 325 9 SW 908 6 -914 910 (4 (4 10 SE --1,038 1,038 1,318 280 280 11 SE 1,693 256 1,489 :}438 3,695 257 257 12 ~ 1,598 45 -r.1,643 I) 1,913 270 270 13 ~W./ --. . --. -. - 14 NE 2 -960 962 1,122 160 56 15 NE 521 250 1,281 . 2,052 3,008 956 761 16 NE ---·• --- 17 SE 1 -586 587 587 -- 18 SE 1,446 167 19 ·-1,632 1,816 184 184 19 SW 1,846 97 62 2,005 3,272 1,267 1,267 20 SW 1,219 173 446 ·1,838 2,480 642 352 21 SW 593 157 260 1,010 775 (235 (235) 22 SW 456 339 153 948 866. (82 (82) 23 SJtJ. 28 143 -171 400 229 229 24 (.NW 338 -30 368 442 74 -74 25 NE 1 -263 264 350 86 - Grand Total 37,270 2,478 8,535 48,283 54,433 6,150 4,903 .. IBv Quadrant " ' ! Northwest 11,332 801 Northeast 4,635 272 Southwest 8,759 915 Southeast 12,544 490 Citywide Total 37,270 2,478 Citywide Summary; Existing Dwelling Units Approved Dwelling Units Estimated Future Dwelling Units Buildout Dwelling Units 3rowth Management Plan Dwelling Unit Max :xcess Dwelling Units ~ates: I. All dwelling unit numbers are as of March 1, 2001. 819 .. 12,952 3,360 -8,267 921 10,595 3,435 .16,469 8,535 48,283 37,270 2,478 ft• :,\"3 8,535 .. ) l 48,283 ! 54,433 6,1so 1 ?. Existing units include all building permits issued as of March 1 , 2001. 14,833 1,881 1,339 9,391 1,124 739 12,331 1,736 •1,446 17,878 1,409 •1,3191 54,433 6,150 4,Q03 ..• t Future unit projections in Zones 8, 15 and 25 were reduced by 25% due to significant environmental constraints. I. Future unit projections in Zone 14 were reduced by 10% due to actual unit yield trends. Future Excess 500 - --- 30 -- 42 ---- - 104 195. -- ;,.""' \ - 290 ---- 86 1,247 542 385 290 30 1.247 Growth Management Excess Dwelling Unit Goal 01/03/2002 : i-w ., RANCHO DEL PONDEROSA f l . Proposed General Plan ARROYO LA COSTA RLM-1 a.\NUfEGl.EHS wA, NO. aos1 D RESIOENTii\L LOW MEDIUM W DENSllY (~4 DU/AC) r=! RESIOENTil\l MEllllN L::.1 DENSITY 14-6 DU/AC) 0 1:1..EMENrARY SCHOOi,. B JIJNOR Hl(.lH SCHOOL 0 Pl.eUC llTl.JTY [ OS I OPEN SPACE 8 TRAVEL S1:RVICES COMMERCIAL mruC%1 ...... , ~ ... :; ..... \