Work is now underway on all permanent venues and enhanced access controls are being phased in to improve security among the 4500-strong workforce.
ODA Chairman John Armitt said: "As the Big Build accelerates we are phasing in robust plans to ensure the security and safety of both the Olympic Park workforce and the surrounding communities.
"Access controls utilising the latest technology will enable properly authorised, equipped and trained workers to enter and leave the Olympic Park as quickly and safely as possible"
Tessa Jowell, Olympics Minister, said: "The UK has years of experience in both tackling terrorism and hosting major sporting and cultural events. Ensuring the construction phase of the Games is safe and secure is a key part of our preparations for London 2012.
ADVERTISEMENT"We are using cutting edge technology to make sure that as activity on the site increases, the workforce and infrastructure continue to be protected without affecting progress."
Olympic Park safety and security measures include:
Since the start of construction a universal enrolment process including UK Border Agency representatives checking documentation to ensure workers on the site have the legal right to do so and valid health and safety accreditation.
Hand scanners providing biometric access control, alongside photographic smart cards, for up to 5000 workers an hour at peak. Iris scanning and access is also available as an alternative system where required.
A security guarding contractor employing and training local people to provide long term career opportunities.
The replacement of the temporary hoardings with a more substantial perimeter fence that is substantially complete.
On site searching and screening at entry and exit points as well as off site searching and screening of vehicle deliveries.
Phased in coordinated CCTV and supporting perimeter security systems.
A dedicated police team at the Olympic Park which is liaising with on-site staff and contractors as well as the local communities.
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