Debated in Parliament on 5 Aug 2014.
Mr Zainal Sapari asked the Minister for Transport (a) what is the current breakdown of the number of cement trucks that are classified under Euro 1 and Euro 5 emission standards; (b) what is the rationale for not allowing these cement trucks to use tunnels and highways during peak hours even with special permits; (c) why is there a discrepancy between the LTA-authorised speed limit of 60 km/h and the Traffic Police's speed limit of 40 km/h; and (d) whether the Ministry can review the restrictions on cement trucks in terms of their speed limit and use of tunnels and highways during peak hours.
There are about 1,600 registered ready-mix concrete trucks, of which 19% are classified under pre-Euro and Euro I emission standards and 4% under the Euro V emission standards implemented in January this year.
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The vehicular speed limit for ready-mix concrete trucks is set at 40km/h due to safety considerations. The wet concrete carried in their revolving drums increase their risk of overturning at higher speeds. Such trucks have to comply with the vehicular speed limit at all times, even when the road speed limit is higher. They are prohibited from expressways, which are designed for higher speed travel, at all hours, to minimise the risk of collisions and accidents.
Permits for ready-mix concrete trucks to use expressways can be granted under exceptional circumstances, such as when a construction site can only be accessed via an expressway. These are typically granted for off-peak hours only for the same safety reason.