A Partnership of Detailed Design & Innovation

Wednesday 12th October 2011

Derby City Council Street Lighting PFI

• Scope,

• Lighting Solution,

• Our Challenge,

• How was it achieved,

– Innovation,

– Partnership.

Scope

• Started in June 2007,

• 5 Year CIP / 25 Yr Planned &

Reactive Maintenance,

• 26,200 columns,

– 18,500 in CIP,

– 5,700 Deemed to Comply,

– 2,000 Temporary Deemed to

Comply.

Lighting Solution

• White light solution in residential areas,

– S3 High Crime,

– S4 in all other areas,

• High pressure Sodium on traffic routes,

• High Uniformity,

• Our selected white light source was

the CosmoPolis lamp.

Our Challenge?

• Balance between cost

effectiveness and compliance,

– Maximise spacing with good

uniformity,

• Standard optic wouldn’t deliver

compliance within budget,

How was it achieved?

• Recognised the relationship

between the lamp and the optic,

• Re-engineer the standard optic, – R60,

– K2,

– VX,

• A partnering approach between

Philips and Balfour Beatty.