HCM Signalized Intersection Capacity Analysis 6: SB Ramp & Graves Mill
Movement Lane Configurations Traffic Volume (vph) Future Volume (vph) Ideal Flow (vphpl) Lane Width Grade (%) Total Lost time (s) Lane Util. Factor Frt Flt Protected Satd. Flow (prot) Flt Permitted Satd. Flow (perm) Peak-hour factor, PHF Adj. Flow (vph) RTOR Reduction (vph) Lane Group Flow (vph) Heavy Vehicles (%) Turn Type Protected Phases Permitted Phases Actuated Green, G (s) Effective Green, g (s) Actuated g/C Ratio Clearance Time (s) Vehicle Extension (s) Lane Grp Cap (vph) v/s Ratio Prot v/s Ratio Perm v/c Ratio Uniform Delay, d1 Progression Factor Incremental Delay, d2 Delay (s) Level of Service Approach Delay (s) Approach LOS
02/23/2018
EBL
EBT
EBR
WBL
WBT
WBR
NBL
NBT
NBR
SBL
SBT
SBR
0 0 1900 12
766 766 1900 12 0% 5.0 0.95 1.00 1.00 3574 1.00 3574 0.88 870 0 870 1% NA 2
1194 1194 1900 12
121 121 1900 12
0 0 1900 12
0 0 1900 12
0 0 1900 12 3%
0 0 1900 12
167 167 1900 12
5.0 1.00 1.00 0.95 1787 0.27 510 0.88 138 0 138 1% pm+pt 1 6 84.0 84.0 0.76 5.0 5.0 470 0.02 0.21 0.29 4.3 1.05 0.4 5.0 A
1 1 1900 11 3% 5.0 1.00 1.00 0.95 1657 0.95 1657 0.88 1 0 191 0% NA 8
295 295 1900 11
5.0 1.00 0.85 1.00 1553 1.00 1553 0.88 1357 319 1038 4% Perm
1230 1230 1900 12 0% 5.0 0.95 1.00 1.00 3574 1.00 3574 0.88 1398 0 1398 1% NA 6
0.88 0 0 0 0%
Intersection Summary HCM 2000 Control Delay HCM 2000 Volume to Capacity ratio Actuated Cycle Length (s) Intersection Capacity Utilization Analysis Period (min) c Critical Lane Group
2 72.0 72.0 0.65 5.0 5.0 1016
72.0 72.0 0.65 5.0 5.0 2339 0.24 0.37 8.7 0.58 0.1 5.1 A 36.6 D
c0.67 1.02 19.0 1.96 19.4 56.7 E
38.2 1.03 110.0 102.4% 15
Graves Mill Road Corridor Plan 2040 No Build AM EPR
0.88 0 0 0 0%
0.88 0 0 0 0%
0.88 0 0 0 0%
0.88 0 0 0 0%
0.88 190 0 0 4% Split 8
84.0 84.0 0.76 5.0 5.0 2729 c0.39
16.0 16.0 0.15 5.0 5.0 241 0.12
0.51 5.0 1.58 0.4 8.4 A 8.1 A
0.79 45.4 1.00 18.4 63.8 E 133.3 F
HCM 2000 Level of Service Sum of lost time (s) ICU Level of Service
0.0 A
5.0 1.00 0.85 1.00 1451 1.00 1451 0.88 335 82 253 6% Perm 8 16.0 16.0 0.15 5.0 5.0 211 c0.17 1.20 47.0 1.00 126.0 173.0 F
D 15.0 G
Synchro 9 Report Page 5
