Average free-flow speed and the jam density observed on a road stretch are 60 km/h and 120 vehicles/km, respectively. For a linear speed-density relationship, the maximum flow on the road stretch (in vehicles/h) is —
Q: A rod is being designed for a speed of 110 km /hr on a horizontal curve with a super elevation of…
A: Super elevation e=8%=0.08,Speed V=110 km/hr,Side friction f=0.10,To Find-The value of the minimum…
Q: Q6/a: A soil of two layers has a hydraulic conductivity of 8(cm/day) for the first layer, and…
A:
Q: 6-Determine the forces in the following members: AB, BG, FG 4 m 4 m 4 m 5 KN 10 kN 10 kN B D 4 m 15…
A: The loads acting are 5 KN, 10KN , 10 KN and 15 KN at D,C,B and E respectively.
Q: Q1. For the truss shown in Figure, find the forces in members BE, CE, and DE 02 3m 3m 4m B E 10 KN…
A:
Q: Q.4/ A normally consolidated (N.C) clay was found to have p-15°, q'= 30°. The soil specimen was…
A:
Q: 1- Find Coefficient of consolidation in cm²/s using root time and TV90% = 0.848. 2- Find…
A: Q1/ specimen of the fine-grained soil, 75 mm in diameter and 20 mm thick was tested in an oedometer…
Q: Consider the strip footing shown in the figure below. The soil is a clay-dominant material with…
A: Depth of foundation= 1 m Width of foundation= 2 m Water table is at ground level.
Q: A soil sample was compacted.The result of the standard proctor test shows that at 100% compaction,…
A:
Q: The three Classical Orders of Greek architecture consist of the Doric, Ionic, and Corinthian orders.…
A: The three Classical Orders of Greek architecture, namely the Doric, Ionic, and Corinthian orders,…
Q: 7) Suppose a crew of two people requires 3 minutes per stop, at which they can service four…
A: Number of people in crew = 2 Required time for stop = 3 min/stop At required time they can service 4…
Q: . While designing a hill road with a ruling gradient of 6%, if a sharp horizontal curve of 50 m…
A:
Q: For the beam shown, will the selected section W21x62 be adequate considering shear? Use LRFD.…
A:
Q: What will be the load carrying capacity (kN) of a group of 6 piles, if the individual load carrying…
A:
Q: f R.L. of station P is 262.575m Horizontal distance from P eld al at ALL Angle Elevat Staff Reading…
A:
Q: If the stopping distance and average length of a vehicle are 18 m and 6 m respectively, then the…
A: SSD = 18 m Length of vehicle = 6 m Speed = 10 m/sec = 36 km/h
Q: Design a trapezoidal footing for the loading conditions given in the figure for a uniform soil…
A: Uniform soil pressure- 320 kPaTo design- trapezoidal footing
Q: Find the amount of land required in a sanitary landfill to f city of 120 000 in population, knowing…
A: population of city=120000 persons amount if waste generation=2.2 kg/capita/day density of solid…
Q: open channel to be made of concrete is to be designed to carry 3.6 cum/s at a slope of 0.00053.…
A: Discharge (Q)=3.6m3/s Bed slope (S)=0.00053 n=0.044
Q: Problem- 3, A road is provided with a horizontal circular curve having deflection angle of 55° and…
A: A road with a horizontal circular curve- Deflection angle d=55o, Radius R=250 m, Rate of radial…
Q: 5/18 Determine the x-coordinate of the centroid of the shaded area. y 2a 0 r = k₁+ k₂0 a Problem…
A: A shaded area is given:- The value of r = k1 + k2 ×θ r = a when θ = 0 r = 2a when θ=π2 To…
Q: Requirements: Shear and Moment with diagrams Using slope deflection method
A: Given : Required : Shear and moment diagram
Q: 3. By superposition method, determine the displacement at 4m from left support of the beam loaded as…
A:
Q: Is there anything more that can be done besides these techniques to ensure the validity of field…
A: Yes, besides the commonly used techniques, there are additional methods you can employ to ensure the…
Q: The data given below pertain to the design of a flexible pavement. Initial trafic = 1213 cvpd…
A: Initial trafic = 1213 cvpd Trafic growth rate = 8 percent per annum Degine life = 12 yrs. Vehicle…
Q: Re is a non-dimensional number to show the onset of turbulence Re pVD VD Res 2000 2000 Re $3000 Rez…
A:
Q: If the magnetic bearing of the Sun at a place at noon is S 2°E, the magnetic declination (in…
A: Magnetic bearing of the sun at a place at noon is 2°E. Magnetic declination = ?
Q: A vertical crest curve has an approach grade +3% and a departure grade –3%. The VIP level is 120 m…
A: To calculate 'H' based on the given data we have 2HL2= (g1 -g2)L2L g1 = 3% = 0.03 g2 = -3% = - 0.03…
Q: Assign the vehicle trips shown in the origin-destination trip table to the network, using the…
A: While going from one node to other node, the path is decided based on the minimum travel time in…
Q: A hydraulic jump occurred at the end of spillway. The following site dimensions are given:- - The…
A: Discharge, Q = 950 m3/s Width, B = 50 m Fr2 = 0.21 ∆E=18.2 m
Q: A new water supply main is being planned for a new city of 2 million population and average per…
A: Note: As per the company policy, maximum 3 sub-parts of a question will be answered at a time, hence…
Q: For linear stress variation over the base of the dam of the figure, find where the resultant crosses…
A:
Q: Which of the following statements is false? Group of answer choices Infiltration increases as…
A: Given statements and asked to find which of the following statements are false. 1. Infiltration…
Q: . Percentage of gravel. 2. Percentage of coarse sand. 3. Percentage of medium sand. 4. Percentage…
A: According to Indian Standard Soil Classification System (ISSCS), soil with particle size > 300 mm…
Q: There are 3 strategies to solve the turbulent flows in conduits, which are as follows: Case 1 Case 2…
A: Equations for turbulent flow in a conduit is given. It is needed to determine which of the given…
Q: A sign is required to be put up asking drivers to slow down to 30 km/h before entering Zone Y (see…
A: The condition is shown in the figure- Slow down speed =30 km/h, Distance required to slow down =174…
Q: Chose the correct answer 1- The Unit measurement of suspended solids is ...A- kg 2- The Unit…
A:
Q: The moist unit weight of soil is 18.3 KN/m3. Given that specific gravity is 2.69 and water content…
A:
Q: F7.3 Determine the forces in all members of the truss shown when loaded with two forces: Fa -225 N…
A:
Q: Find active thurst P₁ = ? when tension crack has not yet appeared A B 2 m 3 m O 2 Clay Y₁ = 17 kN/m²…
A:
Q: A cylindrical sample of cohesive soil tested in the unconfined compression test. At failure, the…
A: Unconfined compressive stress =80kPa The failure plane makes an angle = 50o
Q: The effective shear strength parameters of a normally consolidated clay are Ø' = 25 and c' = 0. CU…
A: In consolidated undrained test The cell pressure, σ3= 112kPa The deviator stress, σd= 100 kPa To…
Q: i). Determine the design spacing for the combined shear & torsion using a 12mm-dia. closed stirrup…
A:
Q: Contract Management and Administration Qn.1 Usually, in contract management, contractual…
A: Making a three pages presentation describing how to prepare contract management and why to prepare…
Q: In a closed loop traverse of 1 km total length, the closing errors in departure and latitude are 0.3…
A: A closed loop traverse- Perimeter of a traverse P = 1 km = 1000 m, The algebraic sum of latitudes of…
Q: Question (1): For the beam shown in figure (1): 1- Calculate all support reactions. 2- Calculate the…
A: Determine a. Support reaction of the beam. b. Internal force and moment at C and D.
Q: Calculate the ultimate axial load capacity of a round spiral column having a diameter of 400 mm…
A: As per the guidelines, we are allowed to attempt only one question at a time. Since f'c and fy…
Q: A channel of rectangular cross section conveys water at a rate of 9 m3/sec. with a velocity of 1.2…
A:
Q: Problem # 6.0 For the tension member shown, compute the tensile design strength. Weld -6" PL 4X6 A36…
A: The tension member is given as To find:- Tensile design strength
Q: The results of a field unit weight determination test performed by means of the sand cone method are…
A: Calibrated dry unit weight of Ottawa sand, Yd1 = 104 pcf Weight of Ottawa sand to fill the cone,…
Q: A Force of 397 N is at an angle of 69 degrees above the positive x axis. What is the y component of…
A:
Density speed traffic engineering.
Step by step
Solved in 3 steps
- 9. A segment of a highway was designed for a free flow speed of 90 mph. At the time of observation along the segment, it was recorded that same segment was at its maximum flow. What is the average speed of vehicles at this instant? a) 60 kph b) 45 kph c) 55kph d) 75kph 10. In Problem 9, what is the density of vehicles at maximum flow? a) 1/3 jam density b) 1/4 jam density c) 1/2 jam density d) none of these7.11 A four-lane highway has a free-flow speed of 100 km/h and the flow-density relationship shown below. (1) Plot the relationship between flow and density. From this equation, determine (2) the flow capacity of the highway. Calculate (3) the jam density and (4) the speed at capacity and determine (5) the level of service when the highway is at capacity. q=100k-0.5k² lutionchin shown below.On a specific highway, the speed-density relationship follows the greenberg's model. The free flow velocity is 80 km/hr and jam density is 200 vehicles/km. When the highway is operating at maximum capacity, the density obtained as per this model is veh/km.
- A freeway traffic stream was observed to have a density of 22.0 veh/mi/ln when the mean speed was 55.0 mi/h. On another occasion at the same location, the jam density was found to be 132 veh/mi/ln. Assume Greenshields' model of traffic flow applies. The optimum speed (in mi/h) is: a) 22.0 b) 33.0 c) 55.0 d) 66.0 e) None of he aboveDetermine i) capacity, ii) jam density, iii) speed and iv) density at capacity of a traffic stream if the speed density relationship follows relation v = 17.2 ln(228/k), if v is space mean speed in km/hr and k is the density at veh/km.Question A linear relationship is observed between speed and density on a certain section of a highway. The free flow speed is observation to be 80 km per hour and the jam density is estimated as 100 vehicles per km length. Based on the above relationship, the maximum flow expected on this section and the speed at the maximum flow will respectively be
- A section of highway having a length 60 m. The observed data are 6 vehicles cross over it in a period of 148 sec., for the following duration: 2.4, 2.8, 3.0, 2.1, 2.2, and 3.5 sec. Estimate the values of the flow rate, density, space-mean speed, time-mean speed, average gap, and average clearance. If the length of vehicles are 6, 5.4, 6.6, 4.8, 7.5, and 6 m respectively?The free flow speed of vehicles on a road section is considered as 80 km/hr and jammed density as 240 veh/km. Estimate the i) traffic density on the road section in maximum traffic flow conditions, ii) possible maximum flow rate for the road section, and iii) average speed of the vehicles at the maximum traffic volume.Traffic on a three-lane (in each direction) freeway observes the following Greenshields flow relationship: V = 60D(1-D/360) where V is the traffic volume on vehicle per hour, and D is the traffic density in vehicles per mile. At 10:00 am, an accident occurs at point A (in the following Figure). The vehicles involved immediately pull off onto the shoulder of the roadway, but traffic passing the incident slows to 10 mph as drivers survey the damage on the side of the road (sometimes called "spectator slowing"). Lucy enters the freeway via the ramp at point B, also at 10:00 am. Upon entering the freeway, she notes that traffic on the freeway is moving along at about 40 mph. Scene at 10:00 am B Lucy 4 Miles A. How fast (i.e., at what speed) will back up from the "spectator slowing" progress upstream of the accident site? number only in units of miles per hour and rounded to the nearest whole number, i.e. XX.) B. When (i.e., at what time) will Lucy first hit slowing traffic due to the…
- 1. (a) The following relationship between traffic speed and flow applies to a particular urban highway:- q = 192u - 44u In u where q = flow in veh/hr. u= speed in km/hr. Calculate the following:- (i) (iii) The mean speed when the highway flow is at maximum capacity The capacity of the highway The density at maximum flow capacity The space mean free speed The jam density (b) Plot diagrams to show the relationships between flow, speed and density given Question 1(a). Use these diagrams to describe what happens when flow changes from uncongested to congested along the highway.The space mean speed (kmph) and density (vehicles/km) of a traffic stream are linearly related. The free flow speed and jam density are 80 kmph and 100 vehicles/km respectively. The traffic flow (in vehicles/h, up to one decimal place) corresponding to a speed of 40 kmph is SIIRDEDQ/ Find the jam density for the section of road with normal flow (1200 veh/hr) and average space mean speed 60km/hr if you know that the maximum flow is 1800 ?veh/hr