Question:
Referring to the Introduction section, can we propose an alternative software (e.g. PTV VISUM) to Aimsun Next if we are able to demonstrate the associated benefits?

Answered on 03/Jun/2026 01:52 PM:


Council is fixed on the AIMSUN model and is not considering alternative software options.

Question:
Hello, please find the questions below. Thank you.

1) What is your budget? Could you please provide an approximate or indicative figure?

2) For the transport model, which peak periods is Wagga Wagga Council interested in - AM peak, PM peak, inter-peak, or all of these?

3) Does Council have a preferred duration for these peak periods, such as 1 hour, 2 hours, or another timeframe?

4) Will the model be developed to represent weekday conditions, or weekend conditions?

5) In relation to traffic data, is Council planning to rely on existing data for the model development, or consider collecting additional data if required? If further data collection becomes necessary, would Council be open to funding additional traffic surveys?

7) Is Council intending to develop a fully microscopic model covering the entire LGA, or would a hybrid approach be considered? For example, a model where the broader network operates at a mesoscopic level, with selected areas of interest represented in greater detail using microscopic modelling.

Thank you.

Answered on 04/Jun/2026 09:37 AM:


1) Council, generally, does not disclose available budget. Tenders are assessed on a number of criteria, as listed in the RFT document.

2) AM and PM peak periods.

3) The preferred duration is 2 hours between 7:30 - 9:30 AM and 3:30 - 5:30 PM.

4) The models will be developed to represent weekday conditions.

5) A completely new dataset is to be used for calibration and validation of the model. If possible, all data are to be collected simultaneously  (on the same day, at the same time)

7) The intent is to develop a tiered model structure: Strategic Mesoscopic Microscopic in the Aimsum modelling platform.

Question:
- Is it possible to receive the most recent calibration reports for the existing models or other documents that will clearly show modelling extent and granularity of network?

- We understand that models are to be developed for six (6) horizon years. Will those models include known and committed infrastructure upgrades or should the model be developed to account for infrastructure BAU, known and committed upgrades, and a test scenario with additional upgrades?

- How many alternate land use and development scenarios should be tested?

- Can you please confirm that model is to be calibrated using one dataset and validated using a different dataset?

- Can you please confirm if SIDRA intersection modelling is required and if so how many intersections should the quote allow for?

- Can you please confirm if the Council has obtained / has intention to obtain Aimsun licence, or a successful contactor should maintain the licence and make it available to the officers?

- Is the model going to be peer reviewed by TfNSW or another party?

- Can you please confirm the anticipated timeframe for delivery?

Answered on 04/Jun/2026 09:41 AM:


1) The Wagga Wagga Transport Model was developed in the EMME modelling platform in 2010. No calibration/validation report exists for the model. The only calibration report currently available is the most recently developed Aimsum model for the Plumpton Road Duplication Project. This report will be attached to this request.

2) The model be developed to account for infrastructure BAU, known and committed upgrades, and a test scenario with additional upgrades.

3) Two (2) alternate land use and development scenarios should be tested.

4) Calibration shall be undertaken using one dataset and a completely different dataset shall be used for validation.

5) No SIDRA modelling is required. However, it is expected that intersection data for SIDRA assessment can be extracted from the model.

6) Council will obtain Aimsum model license shortly.

7) The model may be peer reviewed by a third party.

8) Anticipated timeframe for delivery is six (6) months from tender award date.

Question:
• Task 8.1.4.1 of the brief requests the development of 2026 model by extrapolating from 2021 census data and current traffic data. does council require full calibration of parameters for trip generation, distribution, and assignment of the model?

• Task 8.1.4.1 of the brief requests the current traffic data to be collected by the consultant. Given the cost requirements associated with a such undertaking, does Council have a list of key intersections, local roads, state roads that will need to be included in the survey?

• Could council provide following traffic models mentioned in section 4.1 RFQ:

o EMME/Aimsun Strategic/Network models covering the southern urban area (WSP); and

o Aimsun Northern Growth Area Traffic Model (under development, Premise on behalf of Council).

• As requested in brief, this model will also be used for the upgrade strategy for the Glenfield Road Strategy, could Council confirm if the extents of the corridor to be assessed?

Answered on 04/Jun/2026 09:46 AM:
(edited on 05/Jun/2026 10:03 AM)


Task 8.1.4.1

Council requires full calibration of parameters for trip generation, distribution and assignment. 

Council currently does not have a list of intersections to be surveyed. A list will be developed in consultation with the successful bidder. It is estimated that a total of approximately 80 sites will be surveyed, including intersections and mid-block sections of state and local road network. 

4.1

The attachments are approximately 8.5GB. Consultants are to allow access to a shared folder for Council to save these files into.

email: procurement@wagga.nsw.gov.au

Northern Growth Area:

Regrettably, Council is not in a position to share model files as they have not yet been received as a deliverable under the contract for which they are required. These deliverables are programmed under the contract for delivery in late September, where they would be shared with the contracted consultant. Tenderer's should price according to reasonable assumptions that may be made under information already provided. Assumptions and allowances should be noted in the relevant RFT schedule.

Glenfield Road Strategy:

The extents to be modelled via microsimulation would be all intersections and mid-blocks of Glenfield and Red Hill Roads between Edward Street and Red Hill Road intersections. This would also likely include the intersection of Dobney Avenue/Chaston Street. Major intersections of focus would be:

1. Pearson Steet/Edward Street

2. Pearson Street/Bye Street

3. Pearson Street/Dobney Avenue north

4. Pearson Street/Dobney Avenue south

5. Pearson Street/Urana Street

6. Glenfield Road/Fernleigh Road

7. Glenfield Road/Red Hill Road

Question:
Q3: In the RFT in 8.5 it states "The Consultant shall develop their program to ensure deliver of the future-year models to Council prior to December 31st 2026.". Does this mean the Glenfield Road Corridor Strategy is to be delivered in early 2027? However, we note in the Annexure to AS4122-2010 in Item 13 for "The date or the period after commencement of this Contract, by which the Services must be completed is: (Clause 12.1)" is then stated as "End 2026" which would suggest the strategy is also required to be completed by the end of the contract. If the latter is true, it is possibly a very optimistic timeline given model development and review activities required to be completed before starting the Glenfield work.

Answered on 05/Jun/2026 03:17 PM:


Council believes that base model and future years model development as well as the Glenfield Road Corridor Strategy can be delivered by December 31, 2026. However, if the bidder believes that the above timeframe is optimistic and delivery of the entire project cannot be achieved by the stipulated timeframe, the bidder may submit the bid document suggesting a revised delivery timeframe.