Capacity and Delay Estimation for Roundabouts Using Conflict Theory

Table 1

Conflict matrix of an A-type roundabout.

𝐴𝑖𝑗	Conflict flow
	𝑞^𝑆𝑐	𝑞^𝐸𝑐	𝑞^𝑁𝑐	𝑞^𝑊𝑐
Entry flow
𝑞^𝑆𝑒	1	—	—	—
𝑞^𝐸𝑒	—	1	—	—
𝑞^𝑁𝑒	—	—	1	—
𝑞^𝑊𝑒	—	—	—	1