Figure 6 - Use Vehicles observed on major Hong Kong roads (See Appendix O).
As shown in Figure 6, taxis comprise a considerable percentage of observed
traffic, meaning the tyre waste from taxis will be considerably more than other
vehicles. The vehicles observed on the roads the most is the passenger car, which is
surprising due to the extensive public transportation system in Hong Kong. The data
suggested that small cars and taxis contribute the most to tyre waste.
Another significant source of waste tyres is trucks, especially small trucks.
However, our data was not conclusive so we were not able to determine the exact
percentage of waste tyres generated annually by the small trucks. Trucks make up
about ten percent of the vehicles in Hong Kong and through interviews we determined
that not all of them use retreaded tyres.
Illegal dumping is also a problem due to the fees associated with tyre
collection and splitting prior to burial. Mr. Lee informed us that approximately 4,000
tons of tyres are illegally dumped every year. Tyre collection companies will often