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Hierarchical control design for large-scale urban road traffic networks
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kouvelas, Anastasios Triantafyllos, Dimitris Geroliminis, Nikolas |
| Copyright Year | 2018 |
| Abstract | Many efforts have been carried out to optimize the traffic signal settings in cities. Neverthe1 less, state-of-the-art and -practice strategies cannot deal efficiently with oversaturated conditions 2 (i.e. queue spillbacks and partial gridlocks), as they are either based on application-specific heuris3 tics or they fail to replicate accurately the propagation of congestion. An alternative approach for 4 real-time network-wide control is the perimeter flow control (or gating). This can be viewed as 5 an upper-level control layer, and be combined with other strategies (e.g. local or coordinated reg6 ulators) in a hierarchical control framework. In the current work, a recently developed perimeter 7 control regulator is utilized for the upper-level layer. Another lower-level control layer utilizes the 8 max-pressure regulator, which constitutes a local feedback control law, applied in coupled inter9 sections, in a distributed systems-of-systems (SoS) concept. Different approaches are discussed 10 about the design of the hierarchical structure of SoS and a traffic microsimulation tool is used to 11 assess the impact of each approach to the overall traffic conditions. Preliminary results show that 12 integrating a network-level approach within a local adaptive framework can significantly improve 13 the system performance when spillback phenomena occur (a common feature of city centres with 14 short links). 15 |
| Starting Page | 18 |
| Ending Page | 4080 |
| Page Count | 4063 |
| File Format | PDF HTM / HTML |
| DOI | 10.3929/ethz-b-000275976 |
| Alternate Webpage(s) | https://aimsun.s3.amazonaws.com/marketing/Presentations%202017/TRB%202018%20-%20HIERARCHICAL%20CONTROL%20DESIGN.pdf |
| Alternate Webpage(s) | https://doi.org/10.3929/ethz-b-000275976 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
