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Home My WebLink AboutSDP200800016 Calculations Final Site Plan and Comps. 2006-12-29Parking Demand Study for Martha Jefferson Hospital Charlottesville, Virginia Date Submitted: December 29, 2006 Prepared for: Kahler Slater Architects 111 W. Wisconsin Avenue Milwaukee, WI 53203 -2501 Phone: (414) 290 -3791 Contact: Steve Steen Prepared by: Graef, Anhalt, Schloemer & Associates, Inc. One Honey Creek Corporate Center 125 South 84"1 Street, Suite 401 Milwaukee, WI 53214 -1470 Phone: (414) 266 -9141 Fax: (414) 259 -0037 Contact Shana Mogensen, P.E. Introduction Martha Jefferson Hospital plans to replace its existing facility and develop a comprehensive health care campus on a 72.6 acre site located in the Peter Jefferson Place development. Graef, Anhalt, Schloemer & Associates, Inc. (GASAI) was retained by Martha Jefferson Hospital to conduct a parking demand study for the future hospital campus. This report summarizes the parking occupancy of the existing hospital, hospital statistics, parking demand ratios and the future parking demand. This report also documents the assumptions, procedures and findings of the parking demand study. Existing Parking Occupancy The parking occupancy of the existing hospital campus is beneficial in establishing the existing parking demand. Parking occupancy counts were conducted at the existing hospital facility on February 15, 2006 between Sam and 4pm. The peak parking occupancy occurred between 10am and 2pm and therefore represents the typical design day conditions. Table 1 Summary of Parking Occupancy Campus Summary Parking Supply Occupied Spaces % Occupied Visitor Spaces 237 209 88.2% Physician Spaces 65 67 103.1% Staff Spaces 407 410 100.7% Reserved Spaces 4 4 100.0% Handicap Accessible Spaces — Visitor 19 16 84.2% Handicap Accessible Spaces — Staff 3 1 313% Tenant Spaces 47 30 63.8% Total (Including Tenants) 782 737 94.2% Total (Not Including Tenants) 735 707 96.2% Note: Designated parking spaces for ambulances and hospital fleet vehicles are excluded. Occupancy greater than 100% can occur when vehicles are parked in unmarked spaces. The campus parking is over 96% occupied during the peak period. This occupancy level is assumed to accurately represent existing conditions and will be used to determine the existing parking demand. A parking system operates at optimum efficiency when occupancy is 85% to 90 %. Based on the occupancy counts, the existing facility is experiencing a shortage of physician and staff parking. Staff were observed parking on adjacent streets once their designated parking lots were filled. Approximately 50 vehicles with staff stickers were parked on adjacent streets. Students are not allowed to park in the staff or visitor parking lots. Therefore, the students tend to park on adjacent streets. The existing parking demand was adjusted to include the additional staff and student vehicles that could not be accommodated on the existing site. Hospital Statistics Martha Jefferson Hospital staff completed a parking information survey, which included population and service statistics for the existing and future hospital facilities. A summary of the hospital statistics is shown in Table 2. Table 2 Existing & Future Hospital Statistics Source: Martha Jefferson Hospital Parking Information Survey The statistics shown in Table 2 will be used to model existing parking demand and estimate the demand for the future hospital. The inpatient, outpatient and emergency room registrations are estimated to increase by approximately 17% over the next nine years based on projected hospital patient statistics. Parking Demand for Future Hospital The parking demand ratios that model existing peak period demand for a typical design day are shown in Table 3. These demand ratios are based upon the statistics provided and the conditions observed at the existing hospital. The ratios may not portray the busiest parking day of the year at the hospital. Graef, Anhalt, Schloemer & Associates, Inc. 2 December 29, 2006 L Mucy'Yarkmg' ¢pM 116122111 d Existing (2006) Future (Year 2015) Total Beds 176 176 Physicians —Full time 35 37 Physicians —Part time 8 10 Other Regular Admitting Physicians 270 290 Employees — Full Time Equivalent (FTE) 1,260 1,506 Contract Employees 41 45 Students 150 150 Residents 0 0 Volunteers - Daily 35 45 E(R Registrations — Daily 88 103 Outpatient Registrations — Daily 459 537 Inpatient Registrations — Daily 116 136 Education Programs/Conferences 30 50 Other Visitors `40 1 250 Source: Martha Jefferson Hospital Parking Information Survey The statistics shown in Table 2 will be used to model existing parking demand and estimate the demand for the future hospital. The inpatient, outpatient and emergency room registrations are estimated to increase by approximately 17% over the next nine years based on projected hospital patient statistics. Parking Demand for Future Hospital The parking demand ratios that model existing peak period demand for a typical design day are shown in Table 3. These demand ratios are based upon the statistics provided and the conditions observed at the existing hospital. The ratios may not portray the busiest parking day of the year at the hospital. Graef, Anhalt, Schloemer & Associates, Inc. 2 December 29, 2006 L Mucy'Yarkmg' ¢pM 116122111 d Table 3 Parkinq Demand Ratios Physicians 0.40 spaces per bed Employees (FTE) 0.40 spaces per FTE Contract Employees 0.40 spaces per contract employee Students 0.40 spaces per student Volunteers 0.50 spaces per volunteer Visitors: EIR Patients 0.20 spaces per registration Outpatients 0.40 spaces per registration Inpatients 0.20 spaces per bed Education /Conferences 0.50 spaces per attendee Other Visitors 0.25 spaces per visitor As a comparison, published parking demand ratios can range from 0.75 spaces per bed to 7.63 spaces per bed resulting in parking demands of 132 spaces to 1,343 spaces, respectively for the future hospital. Whereas the parking demand ratios shown in Table 3 were developed for specific users at this site. Applying these demand ratios to the hospital statistics will determine the parking demand for the future hospital. It is important that the supply of parking spaces includes a cushion in excess of the actual demand. This cushion allows for vacancies created by restricting lots to designated users, misparked vehicles, minor construction, the dynamics of parking and unparking vehicles, and to reduce the time needed to search for the last few available spaces. If this cushion is not provided, there will likely be a perception of a parking shortage even though vacant spaces exist in the system. If an adequate cushion is provided, it will be easier to locate open spaces. If the cushion is too large, the most inconvenient spaces will be rarely filled. For these reasons, it is an accepted practice to factor the parking demand to plan for an optimum occupancy level of 85% to 90 %. The parking demand for each user is summarized in Table 4. An occupancy factor of 90% was applied to the parking demand of all users, with the exception of physicians in which an 85% occupancy factor was used. Graef, Anhalt, Schloemer & Associates, Inc. 3 December 29, 2006 L J.h,&C U'0601_10 I kR— tInf « `.:I,AVJ,.,. , p,,,I f1tj,- 7 r,r Table 4 Future Parkinq Demand As shown in Table 4, a total of 1,269 parking spaces are recommended for the replacement hospital. Handicap Accessible Spaces The Virginia Construction Code references the International Building Code (IBC) for accessible parking requirements. The following requirements are based on Chapter 11 of the IBC. • Ten percent of patient and visitor spaces provided to serve hospital outpatient facilities shall be accessible (IBC Section 1106.3). • The number of parking spaces for all other uses was based on Table 1106.1 in the IBC. The minimum number of accessible spaces required by the IBC is shown in Table 5. Table 5 Accessible Spaces Per User Future (Year 2015) Parking Demand Occupancy % (Factor) Number of Spaces Recommended Physicians 71 85% (1.177) 84 Employees 621 90 % (1.111) 690 Students & Volunteers 83 90% (1.111) 93 Patients/Visitors: 2 Other 98 ER 21 90% (1.111) 24 Outpatients 216 90% (1.111) 240 Inpatients 36 90% (1.111) 40 Education /Conferences 25 90% (1.111) 28 Other 63 90% (1.111) 70 Total Parking Spaces 1,136 1,269 As shown in Table 4, a total of 1,269 parking spaces are recommended for the replacement hospital. Handicap Accessible Spaces The Virginia Construction Code references the International Building Code (IBC) for accessible parking requirements. The following requirements are based on Chapter 11 of the IBC. • Ten percent of patient and visitor spaces provided to serve hospital outpatient facilities shall be accessible (IBC Section 1106.3). • The number of parking spaces for all other uses was based on Table 1106.1 in the IBC. The minimum number of accessible spaces required by the IBC is shown in Table 5. Table 5 Accessible Spaces Per User Graef, Anhalt, Schloemer & Associates, Inc. 4 December 29, 2006 L 1Joos200FQ0GW1 IVf4 eIjr F— atimT,.4,ng%Par— g„udv`P.xv,nq Rr, 06129 dcc Number of Total Spaces Minimum Number of Accessible Spaces Physicians, Employees, Students & Volunteers 867 18 Patients /Visitors: ER 24 3 Outpatients 240 24 Inpatients 40 2 Other 98 4 Total Parking Spaces 1,269 51 Graef, Anhalt, Schloemer & Associates, Inc. 4 December 29, 2006 L 1Joos200FQ0GW1 IVf4 eIjr F— atimT,.4,ng%Par— g„udv`P.xv,nq Rr, 06129 dcc As shown in Table 5, a minimum of 51 spaces will be required to be accessible. The 51 accessible spaces account for approximately 4 percent of the total parking supply. In comparison, the existing hospital campus currently has 22 accessible spaces, which accounts for 3 percent of the total parking spaces. For every six accessible spaces, at least one shall be a van accessible space (IBC Section 1106.5). Therefore a minimum of 9 van accessible spaces will be required. Conclusions The existing hospital campus has 735 parking spaces with an overall occupancy over 96 percent. Parking demand ratios were developed based on hospital statistics and the conditions observed at the existing hospital. Based on the parking demand study, the replacement hospital is recommended to provide 1,269 parking spaces, which includes 51 accessible parking spaces. It should be noted that the number of parking spaces is expected to only accommodate the parking needs of the replacement hospital. Future physician office buildings (POBs) and tenant space should be evaluated as they may increase the number of parking spaces required for the campus. Graef, Anhalt, Schloemer & Associates, Inc. 5 December 29, 2006 L Uol.:2L'U6t7DG5IX107',P elect _I;;lo�mancn'F';,d,vgWark;ng SWoy,Pa4,nq R,M; 061229 d. I br9e v N � ®7 L �c u E f^ qo � e �4 OV6 r) �X2 �y to 100 l6 4 K • > ;► QL r �y n a s� 6 cook,.,5 �e� +�so��hl 7ci \qN6q 160 5c) Virginia Department of Transportation Minimum Standards of Entrances to State Highways Table 1 Sight Distances Along Major Roads at Intersections with Minor Roads, Crossovers or Median Openings, and Commercial Entrances (English Measurements) Height of Eye (3.5 ft.) Height of Object (3_5 ft) Design Speed* Miles per hour (mph) 25 mph 30 mph 35 mph 40 mph 45 mph 50 mph 55 mph 2 or 3 Lane Major Road+ 280 ft 335 ft. 390 ft. 445 ft. 500 ft. 555 ft. 610 ft. 4 Lane Major Road Undivided (4 Lane 295 ft. 355 ft. 415 it. 475 ft. 530 ft. 590 ft. 650 ft. Divided Highways at Crossovers - Minimum Sight Distance) 4 Lane ** Major Road 325 ft. 390 ft. 455 ft. 520 ft. 580 ft. 645 ft. 710 ft. (Divided -18 ft. Median) Sight Distances Along Major Roads at Intersections with Minor Roads, Crossovers or Median Openings, and Commercial Entrances (Metric Measurements) Height of Eye (1.08 m.) Height of Object (1.08 m.) Design Speed (km /h)* 40 km /h 50 km /h 60 km /h 70 km /h 80 km /h 90 km /h 2 or 3 Lane Major Road+ 85 m. 105 m. 130 in. 150 m. 170 m. 190 M. 4 Lane Major Road Undivided (4 Lane Divided 90 M. 115 in. 135 in. 160 in. 180111. 205 m. Highways at Crossovers - Minimum Sight Distance) 4 Lane Major Road ** (Divided — 5.4 m. Median) 100 M. 125 m. 150 m. 175 m. 195 m. 220 m. 13