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Privacy and Cookies

Data Security

Website Terms and Conditions

Software Licensing Terms

Privacy and Cookies

We may change this privacy notice from time to time by updating this page.

What information do we collect?

When you use this website, we may collect the following information:

  • the areas of the website that you visit
  • information about your computer, such as which browser you are using, your network location, the type of connection you are using (e.g. broadband, ADSL etc) and your IP address

We do this by using cookies, which are small files that help us track how our visitors use the website and enable us to understand where we can improve your experience. If you would like to find out which cookies we use and the information they track see our Cookies Policy.

Once you submit or register information through our website we will know who you are and your activities on this website and information about you and/or your company may be recorded on our systems. For example, we may ask for personal information when you download our software including:

  • your name
  • company name
  • email address
  • postal address
  • telephone number
  • country where you are based
  • Social media ID
  • your comments/questions
  • services/markets you are interested in

We may also collect personal information from telephone calls and/or other correspondence with you.

What do we do with the information we collect?

The information we capture is used for various purposes. The main purpose is to provide you with our services (whether available via the website or offline). We also use the information for:

  • website development
  • understanding how our visitors interact on the website
  • understanding what our clients are interested in
  • understanding what potential clients are interested in
  • dealing with enquiries/concerns
  • marketing our services and people to you
  • market research
  • service development
  • internal record keeping


We would like to provide you with information about our services and other information which we think you may find interesting. We may send you such information by post, email and/or telephone, unless you have asked us not to do so.

We will not provide your personal information to other organisations for marketing purposes without your explicit consent.

If at any time you do not want your information used for direct marketing purposes, please contact us or follow the unsubscribe link in our marketing email messages.

Who do we share this information with?

We may share your personal information with companies acting on our behalf who will only use the information to provide that service. However, we will retain control of your data and any third party service provider that we use must act in accordance with our instructions. We may also share your personal information with a purchaser or potential purchaser of our business.

In some circumstances, we may have to disclose your personal information by law, because a court or the police or other law enforcement agency has asked us for it.

How to get copies of or amend the information we have collected

You may request details of the personal information that we hold about you under data protection laws. If you would like a copy of the information held about you please write to us at oasys@arup.com or at: Data Protection Officer, 13 Fitzroy Street, London, UK, W1T 4BQ. Please note that we may charge a small £10 administration fee for information requests.

If you think any information we have about you is incorrect or incomplete, please email us as soon as possible. We will correct or update any information as soon as we can.

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Data Security

We are committed to ensuring that your information is secure. In order to prevent unauthorised access or disclosure we have put in place suitable physical, electronic and managerial procedures to safeguard and secure the information we collect, including locked cabinets, electronic password protection and pass card access to buildings.

If at any point you suspect or receive a suspicious communication from someone suggesting they work for Oasys or a website claiming to be affiliated with Oasys, please forward the communication to us or report the incident by email to oasys@arup.com or in writing to Oasys, 13 Fitzroy Street, London, UK, W1T 4BQ as soon as possible.

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Website Terms and Conditions

The contents of this web site are protected by copyright and other intellectual property rights under international conventions. No copying of any words, images, graphic representations or other information contained in this web site is permitted without the prior written permission of the webmaster for this site.

Oasys accepts no responsibility for the content of any external site that links to or from this site.

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Software Licensing Terms

Terms and Conditions of Purchase

The full conditions of purchase and maintenance for all Oasys software are set out in the Oasys Software Licence and Support Agreement. All prices are subject to TAX at the current rate.

Prices and specifications are subject to change without notice – please ask for a written quotation.

Although every care has been taken to ensure the accuracy of all information contained herein, the contents do not form or constitute a representation, warranty, or part of any contract.

Superseded Versions of Terms and Conditions

Oasys keeps copies of all superseded versions of its terms and conditions.

Maintenance & Support Services

Twelve months support and maintenance is included with most products. Thereafter maintenance is typically 20% of the current sales price.

An annual maintenance service is available for most programs after the first year.

This service includes:

  • telephone/fax/email/web based support
  • free software updates available via internet download
  • personalised output header for many products

MassMotion FAQ

MassMotion – BIM compatibility – IFC import into MassMotion

The IFC import into MassMotion has the advantage that the incoming geometry is automatically categorised into the appropriate type: floor, link, stair, etc. It can do this because the IFC file format includes both geometric data and the metadata from the original model. For example, in a CAD model you would just draw a slab outline with lines, but in a building model the slab object includes properties such as thickness, material type, finishes, and so on. The IFC format preserves this data and MassMotion uses it to map the object types in accordance with the import dialog.

There are three other major factors to consider during the import: orientation, scale, and location.


MassMotion uses the same axis set as Autodesk’s Softimage, in which the Z axis is horizontal (screen depth) and the Y axis is in the vertical direction. Most CAD and building models, on the other hand, have the Z axis vertical. This means that the axes need swapping during the import. To do this set the appropriate selection on the second tab of the import wizard.


CAD and building models can be in any units you choose; MassMotion models are always in metres. This means that the import must convert any coordinates appropriately if your resulting model is to be the right size. The import should automatically detect the units from the IFC file, but if this does not work then you would need to either do a units conversion on export to metres if your originating program allows, or set the original units in the import wizard just like importing from a regular CAD file.


While CAD and building modelling programs are happy at working in large coordinates, analysis programs like MassMotion are not. Thus if your original model is located by a national scale coordinate system, you need to move the geometry to the origin either on export or import. The MassMotion import option allows you to define the point in the original model that will become 0,0,0 in the new, but changing this in Revit tends to give a better result. Note that this coordinate is in both the original units and axis orientation.

Other tips


Generally the resulting MassMotion model floors will be in one of two basic forms depending on how the building model was defined or exported.

One option is to export the physical slabs and walls, which will result in one large floor per storey divided by barriers. This will also mean that any doors will generally not translate correctly as links as they will only be on one floor; this is nothing to worry about as they are not needed in this case. The downside to this option is that the agents will not be aware of route choices across this floor and only go the shortest route regardless of congestion. You might find it necessary to add some divisions in the floors after import.

The second (and recommended) option is to export the rooms (or spaces), meaning that each will create a separate floor. Doors will now link these floors and give the agents the full route finding options.

Note that it is not recommended to convert both slabs and spaces as floors because this will likely lead to duplicate/overlapping floors. If you have both IfcSpace and IfcFloor objects, convert the IfcSpace by preference as this will enable the IfcDoor / Links to work


Partition walls are often modelled finished floor to the underside of the slab above, but a wall touching the underside of the floor geometry will still register as a barrier. This means that you may need to edit the walls after import to ensure that there is a gap between the wall tops and the underside of the floor. Check the obstruction and approach maps if you are not sure whether this affects your model.

Stairs and Escalators

Revit currently does not export escalators and some stair types to IFC. One option is to make a copy of the Revit model, change all the escalators to stairs, export that, then reset them back in MassMotion. This may apply to other building model programs. Another option is to select the imported escalator/stair object, then select relevant polygons and use those to generate the escalator/stair.


Unless you have created some custom objects in Revit (other building models are available) you will need to add portals, paths, and servers manually in MassMotion

When updating the MassMotion model after the inevitable changes to the original model, either delete all the imported geometry and reimport, or just the changes (if you know what they are).

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