Dynamic integrated assignment and demand modelling (DIADEM) software
How to access the DIADEM software, which links SATURN assignment models to a variable transport demand model.
Documents
Details
DIADEM is a software tool that enables users to easily set up variable demand models in accordance with the advice provided in TAG unit M2.1 variable demand modelling.
The main demand model used in DIADEM is an incremental hierarchical logit model of the following demand responses:
- trip frequency
- time period choice
- mode choice
- destination choice/distribution
Travel times and other costs are provided by a third-party traffic assignment model with interfaces provided for SATURN.
Software costs
All prices exclude VAT, which will be applied at the prevailing rate where appropriate.
Licence fees
| Licence type | Licence fee per site | Discounted price for every additional licence |
|---|---|---|
| Standard | £1,750 | £1,312.50 |
| Educational | £350 | £350 |
Licence details
The licence enables the use of the software for an unlimited period and within 12 months of purchasing, access to:
- technical support
- updates to the software
A licence allows users to install multiple copies of the DIADEM software at a single site.
Additional copies for use at other sites may be discounted if bought at the same time.
An educational licence must be used for educational purposes only. Refer to the licence agreement for further details.
Payment
There are 2 payment options:
- send the software provider (Atkins) an official purchase order and the software will be dispatched within 2 working days. An invoice will then be issued which must be paid within 30 days
- ask the software provider to issue an invoice after which the software is dispatched when full payment has been received
Non-UK orders must use option 2.
Orders can be made on +44 (0) 1372 756 755 or diadem@atkinsrealis.com.
When placing an order, you must supply your full contact details including:
- name
- organisation
- address
- telephone number
- email address
- location where software will be used
Download DIADEM
Users with an active license can download the software using their user ID and password.
For support, contact diadem@atkinsrealis.com.
Updates to this page
Last updated 22 December 2023 + show all updates
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The support email address has been updated.
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Changed the download link for the DIADEM software.
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DIADEM software version 7.0 released.
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First published.