HCM 2010 Roundabout
13: W Thruston/E Thruston & SR 48
01/11/2023
| Intersection | ||||||
|---|---|---|---|---|---|---|
| Intersection Delay, s/veh | 14.2 | |||||
| Intersection LOS | B | |||||
| Approach | EB | WB | NB | SB | ||
| Entry Lanes | 2 | 2 | 1 | 1 | ||
| Conflicting Circle Lanes | 2 | 2 | 2 | 2 | ||
| Adj Approach Flow, veh/h | 1724 | 883 | 33 | 27 | ||
| Demand Flow Rate, veh/h | 1741 | 892 | 33 | 27 | ||
| Vehicles Circulating, veh/h | 0 | 33 | 1707 | 888 | ||
| Vehicles Exiting, veh/h | 915 | 1707 | 34 | 37 | ||
| Follow-Up Headway, s | 3.186 | 3.186 | 3.186 | 3.186 | ||
| Ped Vol Crossing Leg, #/h | 4 | 2 | 6 | 0 | ||
| Ped Cap Adj | 0.995 | 0.998 | 1.000 | 1.000 | ||
| Approach Delay, s/veh | 17.7 | 7.6 | 12.2 | 6.4 | ||
| Approach LOS | C | A | B | A | ||
| Lane | Left | Right | Left | Right | Left | Left |
| Designated Moves | LT | TR | LT | TR | LTR | R |
| Assumed Moves | LT | TR | LT | TR | LTR | R |
| RT Channelized | ||||||
| Lane Util | 0.470 | 0.530 | 0.470 | 0.530 | 1.000 | 1.000 |
| Critical Headway, s | 4.293 | 4.113 | 4.293 | 4.113 | 4.113 | 4.113 |
| Entry Flow, veh/h | 818 | 923 | 419 | 473 | 33 | 27 |
| Cap Entry Lane, veh/h | 1130 | 1130 | 1102 | 1104 | 342 | 607 |
| Entry HV Adj Factor | 0.991 | 0.990 | 0.991 | 0.990 | 0.992 | 1.000 |
| Flow Entry, veh/h | 810 | 914 | 415 | 468 | 33 | 27 |
| Cap Entry, veh/h | 1114 | 1114 | 1090 | 1090 | 339 | 607 |
| V/C Ratio | 0.727 | 0.821 | 0.381 | 0.429 | 0.096 | 0.044 |
| Control Delay, s/veh | 14.9 | 20.1 | 7.2 | 7.9 | 12.2 | 6.4 |
| LOS | B | C | A | A | B | A |
| 95th %tile Queue, veh | 7 | 10 | 2 | 2 | 0 | 0 |