1. According to the report, Guangzhou has the highest traffic density in China. 2. Dust falls are also an issue in areas with a high traffic density . 3. With such a traffic density , the expense of electrification could be easily recouped. 4. In addition they have to moderate the traffic density to not cause traffic jams. 5. Traffic density is nearly four times the national average, reflecting the state's high population.6. When traffic density is low, the blocks may be longer. 7. The dotted curve illustrates the critical probability of overtaking as function of traffic density . 8. Airports can be towered or non-towered, depending on air traffic density and available funds. 9. He could be a highways official contemplating the effect of toll roads on traffic density . 10. With its generally low traffic density , �r?is a popular destination for anglers and artists.