You are driving in the left lane of a Bay Area freeway and notice that the changeable message sign indicates there is a stalled car 1000' ahead in your lane. Will you have enough time to decide on a corrective action and execute the movement? Assume un- congested conditions.
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- Q3c. At a three leg (T) intersection, the two-way peak hour volume on the minor road is 500 veh/hr and that on the major road is 600 veh/hr. As a Traffic Engineer, what type of intersection control will you propose? What is the basis of your proposal?Give me right solution with clear calculations.What is the first area of the temporary traffic control zone? O Maintenance Area Advanced Warning Area O Transition Area O Activity Area Which of the following is not a factor in determining the spacing of channelized devices? The number of through lanes The type of channelizing device The location of the devices Speed limit Which of the following is NOT a type of taper? Lane Shift Lane Closure Merging Downstream Two-Lane One-Way Tapers are use. O When the work vehicles can safely park on the side of the road O On one-way roadways For special events only O When flaggers are present
- Please solve for all in a way i can understandQUESTION 2 An intersection has a speed limit of 35 mph and the intersection is 33 ft wide. Our "design vehicle" is 20 ft long and can brake at 11.2 ft/sec2. If PIEV time is 1.4 seconds, what is the value of minimum safe clearance time (in seconds)?NEED NEED ANSWER ASAP !!!
- An intersection has a three-phase signal with the movements allowed in each phase and corresponding analysis and saturation flow rates shown in the table below. Assume the lost time is 4 seconds per phase and a critical intersection v/c of 0.90 is desired. Phase 2 3 Allowed movements NB L, SB L NB T/R, SB T/R EB L, WBL EB T/R, WB T/R Analysis flow rate 330, 365 veh/h 1125, 1075 veh/h 110, 80 veh/h 250, 285 veh/h Saturation flow rate 1700, 1750 veh/h 3400, 3300 veh/h 650, 600 veh/h 1750, 1800 veh/h Calculate minimum cycle length O 255 sec O 155 sec O 100 sec O 60 secQUESTION 7 The 4 northbound lanes of a rural freeway segment have 13 ft lane widths. There is no lateral clearance afforded on either side of the road. There are no ramps within the area of influence. What is the estimated FFS (mph)? Provide your answer to the nearest tenths.Answer True/False to the following: 1) A strong degree of uniformity in the design of traffic facilities guarantees uniform reactions from drivers. 2) The traffic signal warrant that several agencies do not recommend using is the Peak Hour Traffic Volume warrant. 3) It is reasonable to use a higher unit extension time value on an actuated signal approaches with higher speeds. 4) According to the Roundabout Design Guide volume-to-capacity ratio of 0.85 must be the threshold for acceptable operation at a roundabout entry.
- An intersection has a three-phase signal with the movements allowed in each phase and corresponding analysis and saturation flow rates shown in the table below. Assume the lost time is 4 seconds per phase and a critical intersection v/c of 0.90 is desired. Phase 3 Allowed movements NB L, SB L NB T/R, SB T/R EB L, WB L EB T/R, WB T/R Analysis flow rate 330, 365 veh/h 1125, 1075 veh/h 110, 80 veh/h 250, 285 veh/h Saturation flow rate 1700, 1750 veh/h 3400, 3300 veh/h 650, 600 veh/h 1750, 1800 veh/h Using v/c equalization ratio, calculate the effective green time for phase 1 O 15.954 sec O 12.105 sec O 14.127 sec O 13.190 sec2. A section of a roadway changes its speed from 65 mph to 45 mph due to start of a work zone. If the sign is visible from 70 ft away for a standard driver, how far away from the start of the work zone area should the sign be placed?Q2b.