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Occupancy/Capacity Calculation for Reopening?

  • 1.  Occupancy/Capacity Calculation for Reopening?

    Posted 05-12-2020 03:23 PM
    Hello All,

    We are in the process of planning for re-opening and are looking at calculating capacity for our building and galleries with social distancing measures implemented. At a minimum we are calculating using a 36 sq ft. per person (each person would have 6 ft x 6ft of space), and only calculating it with usable square footage of our spaces - not gross square footage. I am interested in seeing what other institutions are using for their capacity planning. Do you have more conservative calculations that you're using and if so, why?

    I have seen that the Brandenburg State Museum for Modern Art in Germany is using a 20 sq meter calculation (approximately 215 sq ft), but other than that I've had a difficult time finding any other calculations - only seeing that some places are limiting occupancy to 100 or 200 guests at a time. Thanks in advance for your input!

    ------------------------------
    Matthew Thurman
    Director of Protection Services
    The Speed Art Museum
    Louisville KY
    ------------------------------
    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 2.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 02:06 AM
    Hi Matthew, 

    In some countries where governments have regulated capacity, they've named '30%' (though often haven't said of what - presumably fire code). IAAPA published some guidelines which said 36 sq feet or 4 sq meters per visitor - emphasis on the square, or 28.3 sq feet as a circle for a more efficient use of space. Though, one thing to consider would be the average group size, and group size distribution (and whether we assume this to be the same post reopening as it was before closure).

    Out of interest we released a podcast episode yesterday about capacity management - how to calculate it, manage it, prepare visitors for it, etc... available at podcast.dexibit.com or tune in to the 'Data Diaries' on Apple, Spotify or SoundCloud.

    ------------------------------
    Angie Judge
    CEO
    Dexibit
    Auckland
    ------------------------------

    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 3.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 07:15 AM
    Edited by Mark Walhimer 05-13-2020 04:00 PM
    Hi Matthew,
      I have been corresponding with Georgetown Center for Global Health Science & Security and their reply to my last email;

    "In addition to local guidance, we are recommending against re-opening of enclosed indoor spaces until case counts are down in your area, with a recommended rule of thumb of less than 0.5 cases per 100,000 population per day once testing is easily accessible. Museums have the added risk of bringing in visitors from areas that may have more COVID-19 cases than the host cities, and should therefore follow conservative preventative measures where possible.
     

    If proceeding with reopening prior to declined case counts, limited re-opening of any outdoor portions of museums may help, as well as capacity limits (~25% of normal capacity) and required wearing of cloth masks for visitors."

    To answer your question, 25% of your previous capacity as stated by your local fire department.

    I have been trying to track information posting daily to twitter, https://twitter.com/MuseumPlanning.

    If you have not already, AAM has an excellent web page about reopening, AAM Preparing to Reopen including sample reopening plans.

    Couple of other useful resources to track "cases per 100,000";
    https://coronavirus.jhu.edu/map.html
    https://covidactnow.org/

    Also useful for planning:
    COVID-19 A Frontline Guide for Local Decision-Makers
    OSHA Guidance on Preparing Workplaces for COVID-19

    Stay well,
    - Mark

    ------------------------------
    Museum Planning LLC
    Mark Walhimer
    mark@museumplanning.com
    415-794-552
    ------------------------------

    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 4.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 08:27 AM
    Hi! I'll be the first person to admit I am no math wizard but I think you would need to consider the person in the center, with 6 ft to the left, 6 ft to the right, 6 ft to the front and 6 ft behind him/her, and that makes it complicated! What is the legal occupancy of your building? If your building can hold 300 people and you have to have half occupancy, you would be allowed 150 people. If you have to have a quarter or 25% occupancy, you would be allowed 75 people. Hope that helps!

    ------------------------------
    Martha Akins
    Vizcaya Museum & Gardens
    Miami FL
    ------------------------------

    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 5.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 09:38 AM
    Edited by Mark Walhimer 05-13-2020 12:19 PM
    Hi Martha,
      Your math looks good to me !  75 visitors is 25% of 300 person building occupancy.

    The local Fire Department will know the capacity of a museum and I would think they would appreciate a phone call or visit to discuss accommodating 25% of the museum's building capacity.

     Stay well,
    - Mark

    ------------------------------
    Museum Planning LLC
    Mark Walhimer
    mark@museumplanning.com
    415-794-5252

    ------------------------------

    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 6.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 08:49 AM
    Matthew, 

    I had the same question and found a metric that I'm using (113 sq ft per person) on the FEMA site in a post on "Understanding the impact of social distancing on occupancy": https://www.usfa.fema.gov/coronavirus/planning_response/occupancy_social_distancing.html

    Hope it helps. I'll be interested to hear what parameters others are using.

    ------------------------------
    Susan Randolph
    Executive Director
    Marshall Steam Museum at Auburn Heights
    Yorklyn DE
    ------------------------------

    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 7.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 09:25 AM

    First I am going to start with the occupancy guidelines from our state.  Florida currently allows us to be open at 25% capacity.

     

    I like your square footage calculation, but I would alter it a little-perhaps 81 square feet.  The reason I say this is because we are not going to require couples or groups of people who come together to keep six feet apart from themselves.  So you should factor in space needed for a 2-3 people.  Finally, we are also going to base our calculations on "usable space."  We are in a historic building with a lot of small rooms-not ideal.  So we'll calculate for each room.

     

    Harry Klinkhamer

    Historical Resources Manager

    City of Venice

    941-486-2490

    hklinkhamer@venicegov.com

                           

    Venice Museum & Archives                 City of Venice

    http://www.venicemuseum.org/       http://venicegov.com

     

    Museums provide places of relaxation and inspiration.

    And most importantly, they are a place of authenticity.
    - Thomas Campbell

     




    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 8.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 10:06 AM
    Edited by Wesley Haines 05-13-2020 10:41 AM
    A 6'x6' area will only give each person 3 feet on either side of them. Like Martha describes, everyone should have 6 feet of clearance in the front back and side to side. The link that Susan provided gives the true social distancing calculation of ~113 sqft/person. If you want to be more conservative you can use a 12'x12' square instead of a 12' diameter circle to calculate the load at 144 sqft/person. Edit: Matthew is correct, if each person has a three foot space around them, then standing next to someone else with a three foot perimeter will allow for 6' distancing.

    These calculations do not take into consideration groups of people who are in the same household and can occupy the same space together. That makes things a lot more complicated, but you will never know how distanced they are from each other and if they split up to look at different things. Using one of the above calculations is usually more conservative than 25% of your fire code capacity. 

    When looking at your usable building square footage, don't forget to reduce for keeping a safe distance away from the artwork.

    ------------------------------
    Wesley Haines
    Facilities Manager
    Menil Collection
    Houston TX
    ------------------------------

    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 9.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 10:27 AM
    Thanks everyone for your responses and additional ideas to think through! To clarify on the minimum calculation of 6x6 (if others are looking to use this type of calculation), each person  would have 3 feet on each side of them, so if there were 2 people standing next to each other it allows for 6ft distancing. This was definitely a 'minimum' starting point (and as noted by Angie a circular area calculation is truly the most minimal to allow 3 ft at all points).

    ------------------------------
    Matthew Thurman
    Director of Protection Services
    The Speed Art Museum
    Louisville KY
    ------------------------------

    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 10.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 11:12 AM
    We are using 150 sq ft = (7 x 7) x 3.14 where 7 ' assumes a person is 1 ft + 6 ft for social distancing.  Fun to use pi r-squared in real life...

    ------------------------------
    Melissa Felder
    Chief Revenue & Marketing Officer
    California Academy of Sciences
    San Francisco CA
    ------------------------------

    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 11.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 12:18 PM
    Edited by Mark Walhimer 05-13-2020 12:18 PM
    Interesting to see the different calculations !

    Please check my math, a 10,000 sq foot museum, has a typical / 30 occupancy rating, or 333 people maximum occupancy.

    25% of maximum occupancy would be 83 person maximum occupancy.
    150 sq ft per person, 66 person maximum occupancy
    113 sq ft per person FEMA Guideline, 88 person maximum occupancy 
    81 sq ft per person, 123 person maximum occupancy

    There are also the issues of timed ticketing to make sure all of the people are not waiting in a group outside the building, online ticketing and social distancing outside the building.

    ------------------------------
    Museum Planning LLC
    Mark Walhimer
    mark@museumplanning.com
    415-794-552
    ------------------------------

    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 12.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 11:21 AM

    Hello Matthew,

     

    I believe your Museum also has a café (and, of course, external and internal catering events).

     

    Please note that the local Health Department (City, County and/or State) will likely have different requirements for food and beverage service areas.

     

    And, the retail store(s) may also have different requirements.

     

    If you are outsourcing one or both areas the operator(s) should be able to assist you in this regard.

     

    Hope this is helpful.

     

    Thanks,

    Art

     

    Be Safe & Healthy!

     

    Art Manask Consulting, Inc.

    artmanask@gmail.com

    818 358-3588 (NEW Office)

    818 406-5993 (Cell)

    artmanaskconsulting.com

     

    This message contains information which is confidential and privileged.  Please do not disclose this message or any information contained in the message and/or the attachment(s) to the message to anyone else.  If you have received the message in error, please advise sender by return email and delete the message. Thank you very much.

     

     




    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 13.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 02:17 PM

    As a nonprofit, the National Aquarium relies heavily on its gate. And we are learning that defining capacity/daily attendance is more than just calculating square foot per person. Other variables that we are using are the recommendations for guest safety, the guest perception around safety, creating exceptional guest experiences, and meeting revised revenue goals.

    Beginning with capacity, and similar to you, we started with calculating the total area of the primary, useable public spaces and applied the standard 30 sq ft/person. This number created a false positive. Our guests do not evenly distribute themselves in each area, and the flow rate in some galleries is much longer than others.

    Using the same public spaces, we categorized them by function -- Circulation, Exhibits, Business Partner (retail, restaurant), etc. -- and adjusted the square foot per person. Non-linear spaces, like Circulation, where social distancing will be self-regulated by guests was increased from 30 sq ft/person to 100. For exhibits that are linear in flow, we increased the 30 sq ft to 50.

    From there, we looked at spaces where specific pinch points impacted the guest flow. Calculating the capacity for just these areas, not the total of all spaces, gave us a second set of numbers to consider.

    Next, we worked with our Guest Services Team, who works and manages our crowds every day. We reviewed both sets of capacity numbers and did a gut check on the number of guests they thought they could manage under these new conditions. With this number, we went through last year's attendance numbers and found several days with similar daily attendance. Digging deeper, we pulled their hourly ticket sales to understand the guest flow and rate.

    Finally, we worked with our finance and marketing team, who were already looking at attendance and price per cap by using various percentages (25%, 50%, 75%) of our daily attendance.

    We found that when we applied the most restrictions, our capacity number was approximately 25% of our previous attendance. Working with a cross-department team and looking at increasing the number of online sales, timed ticket entry, moving more of the onsite experience to a linear flow, etc., we believe we can adjust our capacity to approximately 40% of our attendance while maintaining a safe and engaging aquarium experience.

    I hope this helps. 
    sP



    ------------------------------
    Scott Perich
    Director of Long Range Planning and Strategic Design
    National Aquarium
    Baltimore MD
    ------------------------------

    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 14.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-13-2020 03:55 PM
    Edited by Mark Walhimer 05-13-2020 03:59 PM
    Thank you Scott !

    Your estimate of 25% to 40% of previous attendance charted to the previous year broken down by hour is very helpful.  A couple of questions;

    Will you be using online timed ticketing ?

    How will you "stage" guests outside the building to maintain your target number of guests inside the building ?

    Stay well,
    - Mark 

    ------------------------------
    Museum Planning LLC
    Mark Walhimer
    mark@museumplanning.com
    415-794-552
    ------------------------------

    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more


  • 15.  RE: Occupancy/Capacity Calculation for Reopening?

    Posted 05-15-2020 09:12 AM

    Mark. Yes, the National Aquarium will continue to use its online timed ticketing system.

     

    We have been using a timed ticketing system for almost 30 years now. However, before COVID-19, more tickets were purchased onsite than online, so we'll be messaging and encouraging online transactions during the visit planning phase, as well as when guests arrive onsite.

     

    We are still working through the details regarding your second question, "How will you stage guests outside the building to maintain your target numbers," but here are a few ideas that were are exploring/advancing.

     

    We are increasing our timed entry window to every 30 minutes, rather than our previous 15, providing a larger window of time for guests to enter.

     

    With online timed tickets, we can "close" certain time spots to even the spread when guests arrive to enter the Aquarium.

     

    Some entry spaces are being re-purposed to redistribute guests to meet capacity numbers for these areas.

     

    We are developing a staffing model and protocols for monitoring flow.

     

    We are also talking with zoos and aquariums that opened this week and last to learn from them.

     

    I hope this fills in some of the missing information.

     

    All the best.


    SCOTT PERICH
    Director of Long Range Planning
    Phone410-576-1012
    Fax410-576-8641
    Email
    SPerich@aqua.org
    aqua.org
    We are a nonprofit organization whose mission is to inspire conservation of the world's aquatic treasures.
    National Aquarium
    501 E Pratt St, Baltimore, MD 21202 (Aquarium)
    111 Market Pl, STE 800, Baltimore, MD 21202 (Office)

     
    Please consider our ocean planet before printing.
    [NAISIG1]



    AAM Annual Meeting & MuseumExpo, Baltimore, May 16-19, 2024, click to learn more