of 2007, consisting of a website and an album Sounds of the Underground of ten songs for the purpose. The LTA has also put up a tender calling for consultants to develop congestion management systems in the KPE. The call has drawn three submissions. It also rolled out the first dedicated team of Traffic Marshals, with the primary role of rapid deployment to any incident within the tunnels. The annual contract was awarded to Certis CISCO, who would deploy six marshals on motorcycles around the clock in the KPE, to be expanded to 28 motorcycles and three cars across all expressways by the end of 2008. Speed cameras KPE's underground section is fitted with digital speed cameras that operate 24 hours throughout the day to enforce the 80 km/h speed limit (lower if safety advisories display so). In the first week of phase 1 operation 3,400 motorists were caught speeding in the KPE, consisting of 3% of the total traffic which alarmed the traffic police. 45 of the speed violators which were in excess of 40 km/h received court summons, while others received either a traffic summons or a warning letter from the Land Transport Authority. The speed cameras are easily spotted in the middle section of the tunnel and are found under the main via ducting. There have been no instances of speed cameras flashes indicating a violating vehicle exceeding the limit, as the luminosity in the tunnel does not require additional light source. References External links Land Transport Authority webpage on KPE KPE Information Portal Expressways in Singapore Road tunnels in Singapore Kallang Geylang Hougang Marina East Paya Lebar Sengkang Tunnels completed in 2007 Transport infrastructure completed in 2007 Transport in North-East Region, Singapore 2007 establishments in Singapore