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Construction Contract Leads

Scope

Reference

TRAI3010

Description

DfT provision of a C++ Programmer

The supplier will be providing technical support on the C++ part of the DfT National Aviation Passenger Allocation Model (NAPAM). The supplier will work alongside other transport modellers, economists, and analysts to develop and maintain NAPAM.

The central part of this model is a bespoke module written using Microsoft .NET C++ environment with Excel used to input/output data (c. 10,000 lines of code). This module performs mathematical calculations iteratively until a solution that meets user defined inputs is achieved (e.g. passengers at a particular airport not exceeding a set value).

The requirement entails providing ad-hoc software development support of the bespoke C++ module to expert users

The contract duration is for 3-years (36-months), with no option to extend. This contract is a call-off with a maximum budget of £120,000.00 excluding VAT. This budget is non-committal – therefore the Authority cannot guarantee volume and spend.

To access the full ITT pack, bidders are required to register to DfT'S e-sourcing platform. Details below:

To register to our e-sourcing platform please click here

Once registered please access the ITT using the following link

Total value (estimated)

• £100,000 excluding VAT
• £120,000 including VAT

Below the relevant threshold

Contract dates (estimated)

• 27 April 2026 to 26 April 2029
• 3 years

Main procurement category

Services

CPV classifications

• 71356000 - Technical services
• 48980000 - Programming languages and tools
• 72243000 - Programming services

Contract locations

• UK - United Kingdom

Participation

Conditions of participation

To access the full ITT pack, bidders are required to register to DfT's e-sourcing platform. Details below:

To register to our e-sourcing platform please click here

Once registered please access the ITT using the following link

Submission

Enquiry deadline

20 March 2026, 5:00pm

Tender submission deadline

27 March 2026, 12:00pm

Submission address and any special instructions

Please use the following to register

Tenders may be submitted electronically

Yes

Award criteria

Subweightings will be split as follows:

Technical 70%

Social Value 10%

Commercial 20%

Procedure

Procedure type

Below threshold - open competition

Contracting authority

Department for Transport

• Public Procurement Organisation Number: PLTC-5358-LTWZ

Great Minster House, 33 Horseferry Road

London

SW1P 4DR

United Kingdom

Email: dftc.procurement [at] dft.gov.uk

Region: UKI32 - Westminster

Organisation type: Public authority - central government