The National Natural Science Foundation of China(No.71101025);the National Key Technology R&D Program of China during the 12th Five-Year Plan Period(No.2011BAK21B01);the Doctoral Programs Foundation of the Ministry of Education of China(No.20100092110037);the Fundamental Research Funds for the Central Universities
The effect of the aggregation interval on vehicular traffic flow heteroscedasticity is investigated using real-world traffic flow data collected from the motorway system in the United Kingdom. 30 traffic flow series a...