An intersection of four phase signal with the movements allowed in each phase and corresponding analysis and saturation flow rates shown in table pictute below. Calculate the sum of flow ratios for critical lane groups. Table 7.7 Data for Problem 7.2Phase34Allowed movementsAnalysis flow rateEB L, WB L245, 230 veh/hEB T/R, WB T/R975, 1030 veh/h3350, 3400 veh/hSB L, SB T/R255, 235 veh/hNB L, NB T/R225, 215 veh/h1700, 1750 veh/hSaturation flow rate1750, 1725 veh/h1725, 1750 veh/h

Table 7.7 Data for Problem 7.2 Phase 3 4 Allowed movements Analysis flow rate EB L, WB L 245, 230 veh/h EB T/R, WB T/R 975, 1030 veh/h 3350, 3400 veh/h SB L, SB T/R 255, 235 veh/h NB L, NB T/R 225, 215 veh/h 1700, 1750 veh/h Saturation flow rate 1750, 1725 veh/h 1725, 1750 veh/h

Table 7.7 Data for Problem 7.2 Phase 3 4 Allowed movements Analysis flow rate EB L, WB L 245, 230 veh/h EB T/R, WB T/R 975, 1030 veh/h 3350, 3400 veh/h SB L, SB T/R 255, 235 veh/h NB L, NB T/R 225, 215 veh/h 1700, 1750 veh/h Saturation flow rate 1750, 1725 veh/h 1725, 1750 veh/h

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter9: Capacity And Level Of Service For Highway Segments

Section: Chapter Questions

Problem 17P

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Question

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An intersection of four phase signal with the movements allowed in each phase and corresponding analysis and saturation flow rates shown in table pictute below. Calculate the sum of flow ratios for critical lane groups.

Table 7.7 Data for Problem 7.2
Phase
3
4
Allowed movements
Analysis flow rate
EB L, WB L
245, 230 veh/h
EB T/R, WB T/R
975, 1030 veh/h
3350, 3400 veh/h
SB L, SB T/R
255, 235 veh/h
NB L, NB T/R
225, 215 veh/h
1700, 1750 veh/h
Saturation flow rate
1750, 1725 veh/h
1725, 1750 veh/h

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