The document summarizes the results of traffic surveys conducted across Cambodia's road network in 2005. Over 60 roadside count stations, 41 origin-destination interview stations, and 21 travel time surveys were performed. Key findings include:
- Traffic volumes on national highways near Phnom Penh exceeded two-lane road capacities, indicating the need for widening.
- Most trips originated or ended in Phnom Penh, especially between Phnom Penh and Kandal Province.
- Existing traffic bottlenecks are caused by mixed traffic, roadside markets, lack of traffic control, and reached road capacities near major cities.