Abstract
A macroscopic fundamental diagram(MFD) gives an invariant functional relationship among macroscopic variables in a large urban area. Beijing as one of the largest cities in the world has a number of unique traffic features. A MFD is presented for Beijing urban ring freeways by using traffic detector data. It shows the characteristics of a MFD pertaining to Beijing urban ring freeways, and provides insight into traffic conditions in Beijing. A pattern that lower occupancy variance is associated with lower network flow is observed; it is different from present findings. The observation is investigated and is further attributed to outsync of 5th ring and a radial spread of congestion in Beijing.
| Original language | English |
|---|---|
| Pages (from-to) | 199-205 |
| Number of pages | 7 |
| Journal | Jiaotong Yunshu Xitong Gongcheng Yu Xinxi/ Journal of Transportation Systems Engineering and Information Technology |
| Volume | 14 |
| Issue number | 2 |
| Publication status | Published - Apr 2014 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 11 Sustainable Cities and Communities
Free Keywords
- Congestion
- Hysteresis phenomena
- Macroscopic fundamental diagram
- Urban freeway
- Urban traffic
ASJC Scopus subject areas
- Control and Systems Engineering
- Modelling and Simulation
- Transportation
- Computer Science Applications
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