Determine the density (in veh/mi) of a traffic stream comprised mainly of passenger cars, for which a 6-ft long detector measured an occupancy of 17%. Assume an average vehicle length of 18 ft. A. 37.4 B 41.3 C 49.9 D Insufficient information is provided. E None of the above
Q: A dry soil has a void ratio of 0.65 and its grain specific gravity is 2.8. Water is added to the…
A:
Q: Example / A sedimentation tank has width of 20m and height of 3m The Velocity of Flow is 5mm and the…
A:
Q: A trapezoidal dam of trapezoidal cross section, with one face vertical and a horizontal base is 8m…
A:
Q: What are the downsides of building software in-house?
A: Brief concept introduction- Building software such as Building Information Modelling (BIM),…
Q: Name and explain two or more virtualization security issues among Drones and Autonomous Aerial…
A: Introduction- Drones and Autonomous Aerial Vehicles- An unmanned aircraft is a drone. Unmanned…
Q: H 2.27 Link BD is made of brass (E = 105 GPa) and has a cross-sectional area of 240 mm². Link CE is…
A: Given Data - E of brass = 105 GPa Area of Link BD = 240 mm2 E of aluminium = 72 GPa Area of link…
Q: Determine the maximum compressive force at member HL due to an 8kN point load.
A: Answer Let us first draw the ILD for member HL Pass a section through member HL as shown below…
Q: Given the following Mass-Haul Diagram: O $30,000 O $28,000 O $25,375 O $20,250 Net Cumulative…
A: Given:- The mass-haul diagram is given: The limit of free haul = 600 ft The price of excavation =…
Q: 6.64 Two square tubes of uniform thickness t are a shown in Figure P6.64. Determine the maxim terms…
A:
Q: A concrete beam is post-tensioned by a cable carrying initial stress of 1000 N/mm2, the slip at…
A: Given- Initial stress=1000 N/mm2slip ∆=5 mm=5×10-3 mModulus of elasticity E=210 kN/mm2=210×1000…
Q: As an engineer, conduct a research on the hot and cold water supply system of a building,…
A: Here it is asked to conduct a research on hot and cold water supply system of building, institution,…
Q: Example Arectangular Sedimentation bank with an area of 200 m² treats a flow of 16000 m³/day. The…
A:
Q: -29. Draw the shear and moment diagrams for the beam. 10 kN L₁ -3 m 5 kN/m 6 m- B 3 m- 10 kN
A:
Q: Problem 1: Determine the flexural strength of a W 410 x 67 beam with a simple span of 8 m and Fy =…
A:
Q: Q- A cylindrical piece of steel, with a diameter of 60mm and length 100 mm, is subjected to an axial…
A: Given data- Diameter d=60 mm, Length L=100 mm, Axial compressive force=40,000 kg, Bulk modulus =…
Q: Determine the total forces supported by the pine at C for the loaded frame. 20,2m 2,2 0,2 m B A 012…
A:
Q: Buses versus light rail, which is more effective and why?
A: A form of public transportation that has significant advantages over buses and fast transit systems…
Q: Q3. Beam OA is supported by a ball and socket joint at O and Cables AB and AC. If a 150 N force is…
A: To determine the forces in the tension support. Assume the tension in the cable, Then, reduce the…
Q: The equilibrium position of a block of wood of density 'po' at the interface of liquid 1 and liquid…
A:
Q: 4.) Average: Area Moment Method Given the Cantilever Beam as shown below with Moment 10P at midspan.…
A: A loaded beam is given and it has been asked to determine load at A to make deflection at A equal to…
Q: *Determine (a) the principal stresses, (b) maximum shear stress, and (c) the orientations of the…
A:
Q: Both portions of the rod ABC are made of an aluminum for which E = 70 GPa. 0.4 m 0.5 m B C 20-mm…
A: Objective: To determine the value of load Q, such that the deflection at A is zero. Given: P = 59…
Q: For the truss shown in the figure below, assume that the loads are being transmitted to the bottom…
A: Solution ILD for member DI Pass a section through member DI as shown below When the Unit load is…
Q: A Beam is built up from the following plates. 450mm x 20mm as flanges and 500mm x 20mm as web. All…
A:
Q: 2. Congestion starts at 6am in an expressway. Survey found out that an average of 600vph entered the…
A: a). Time of dissipation The time of dissipation is the time when the congestion is completely…
Q: Using Virtual Work method. Solve for the horizontal deflection at C. where El is contant. 5m A B 3m…
A:
Q: What are the applications and significants of jet of water impinging on solid flat and curved…
A: When a jet of water impinges on a solid surface, it can create various effects, depending on the…
Q: The direct and indirect costs estimated by a contractor for bidding a project is 160000 and #20000…
A: Given data: Direct cost DC = Rs 160000, Indirect cost IC = Rs 20000, Markup =10 % of the bid price.
Q: What are the classifications of Fire Extinguisher? Please answer it completely.
A: Brief concept introduction- Fire Extinguisher- Fire extinguishers employ a material to lower the…
Q: A rod supporting a weight of 140 kN is connected to two bars by a 6.0 cm dowel of diameter. a)…
A: Given data in question Load 140 kN Diameter 6 cm Cross section 5 cm and 1.3 cm To find out Tensile…
Q: a) 12.5 kip b) 32.5 kip 10 kip/ft c) 7.5 kip 5 ft d) 17.5 kip 5 ft The simply-supported beam above…
A:
Q: What are the types and compositions of a Health and Safety Committee?
A: A Health and Safety committee is a work-related organization group that includes representatives…
Q: 1. The girder in the figure is made from a uniform beam and reinforced at its center with cover…
A: Given:- Total length of beam=12 mE=200 GPaIAD=IEB=280×106 mm4IDC=ICE=560×106 mm4 To find:-…
Q: Problem 1: Determine the flexural strength of a W 410 x 67 beam with a simple span of 8 m and Fy =…
A:
Q: Explain what is impact breccia; how it forms, and if it can be a metamorphic rock.
A: Impact breccia- When huge meteorites or comets collide with Earth or other rocky planets or…
Q: The equilibrium position of a block of wood of density 'po' at the interface of liquid 1 and liquid…
A:
Q: Determine the moment of inertia with respect to the illustrated A axis of the C 150 x 19 profile.…
A: Objective: To determine the moment of inertia with respect to the A-axis as shown in the given…
Q: Determine the wind speed at a height of 40 m over surface terrain with a few trees, if the wind…
A:
Q: Determine the tension in each section of the cable, the horizontal load at point C and the length…
A:
Q: An isosceles right-angled triangular section of height 10m and width 10m. It is subjected to a shear…
A: Given- Height h=10 m, Width b=10 m, Shear force SF=2500 N, Maximum shear stress=?
Q: The rigid pipe is supported by a pin at A and an A-36 guy wire BD (E = 29 000 ksi). If the end C is…
A: Given, A-36 guy wire BD having elasticity,E = 29000 ksi. End C displace downward by 0.75…
Q: 4. A floor beam in an office supports a 3-m wide and 250 mm thick concrete slab, which serves as a…
A: Given data, Floor part The beam supports a ceiling, a block wall and plaster of ceiling wall.…
Q: Calculate the coordinates of the polygon
A: Data given Find : coordinates of the polygon
Q: Buses vs Light Rail Transit Describe the culture impact these have.
A: Buses and light rail transit (LRT) can have significant cultural impacts on a community. Here are…
Q: Calculate the coordinates of points B and C of the connecting polygon
A:
Q: what is the specific weight of water?
A:
Q: A soil sample was taken for bulk density determination using a core sampler which is cylindrical in…
A:
Q: 1. A wastewater is treated in an aerobic CSTR with no cell recycle. The following hold: Ks= 50mg/l;…
A:
Q: Laboratory Problem Exercise #2 Given the figure and the following data: Determine (a) the width of…
A: Given:- The unit weight of the concrete, γc=2.4 T/m3 The coefficient of friction between the base…
Q: 2- The density of a liquid is to be determined by an old 1-cm-diameter cylindrical hydrometer whose…
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- 2. Data obtained from aerial photography showed six vehicles on a 600 ft – long section of road. Traffic data collected at the same time indicated an average time headway of 4 sec. Determine (a) the density on the highway, (b) the flow on the road, and (c) the space mean speed. Ans. k = 52.8 veh/mi, q = 900 veh/h, SMS = 17.0 mi/hA construction zone on a highway has a posted speed of 40 kmph. The speeds of vehicles passing through this construction zone are normally distrbuted with a mean of 45 kmph and a standard deviation of 4 kmph. a.) What is the probability that a vehicle passing through the construction zone exceeds the posted limit? b.) What is the probability that a vehicle passing through the construction zone is travelling at speeds between 38 and 49 kmph? c,) For the next 30,000 vehicles passing through the construction zone, how many will be passing through the zone with speed less then 50 kmph?3 During a traffic speed survey, the following observations were recorded when a vehicle passes a 50 m long road section XY. Vehicle Time of Passing X (seconds) Time of Passing Y (seconds) 1 4.5 5.8 6.1 6.3 7.5 23 4 5 2.0 3.5 4.0 4.5 5.5 Determine the following: (i) Average time mean speed (ii) Average space mean speed using the above data (iii) Also verify the results obtained in (ii) above using relationship between the time mean speed and space mean speed.
- Consider the following data: · Average number of vehicles (overtaking - overtaken) = 1 • Average number of vehicles during trips in opposite direction of traffic flow = 336 · Average journey time when test vehicle is travelling with the stream = 8 min 31 sec. · Average journey time when test vehicle is travelling against the stream = 7 min 24 sec. Average journey time for the above data is min. %3D4. When the accident rate (instead of accident number) is used to identify hazardous location, there is bias towards selecting low-flow locations with few accidents. B. False A. True 5. If all cars on one lane move at 25 mph and all cars on the second lane move at 30 mph, the time mean speed and space mean speed calculated for the 2-lane highway will be the same: Α. True B. FalseData obtained from aerial photography showed six vehicles on a 600 ft – long section of road. Traffic data collected at the same time indicated an average time headway of 4 sec. Determine (a) the density on the highway, (b) the flow on the road, and (c) the space mean speed.
- 3. A vehicle platoon was observed over a distance of 1000 ft on a single lane of Oak Street. entering at point A and departing at point B. Vehicle Time at A Time at B (sec) (sec) 1 35 2 (a) Trajectories (b) Avg. Volume Density & Space Mean Speed 37 3 39 4 5 42 5 44 6. 8. 48 (a) Plot the trajectories of these six vehicles on graph paper and (b) calculate the aver- age volume, density. and speed for these six vehicles observed, assuming the first 10 sec- onds at A as the period of observation.PROBLEM 6: Four vehicles passing through the SLEX has the following observation. Determine the time mean speed. Vehicles Time of passing (sec) | Spot speed (kph) 1 1.5 55.4 2 6.0 56.8 3 8.0 53.6 4 12.00 48.91. From the following data of freeway surveillance, there are 5 vehicles counted for a length of 300 m, and the following positions are observed on the two photographs taken 2 seconds apart, the distance "S" that each vehicle travels. (a) Compute the density of flow in veh/km (b) Compute the space mean speed in kph, and (c) Compute the flow of traffic in vehicles/hour. Vehicles Position 1 Position 2 S (m) 1 268.3 m 292.7 m 215.4 m 234.2 m 3 175.0 m 199.7 m 4 143.2 m 170.1 m 95.20 m 118.1 m 2. Data obtained from aerial photography showed six vehicles on a 600 ft - long section of road. Traffic data collected at the same time indicated an average time headway of 4 sec. Determine (a) the density on the highway, (b) the flow on the road, and (c) the space mean speed. Ans. k = 52.8 veh/mi, q = 900 veh/h, SMS = 17.0 mi/h 3. Two sets of students are collecting traffic data at two sections, xx and yy, of a highway 1500 ft apart. Observations at xx show that five vehicles passed that section at…
- 4-14 Table 4.10 shows data obtained in a travel time study on a section of highway using the moving-vehicle technique. Estimate (a) the travel time and (b) the volume in each direction at this section of the highway. Chapter 4 Traffic Engineering Studies 149 Table 4.10 Travel Time Data for Problem 4-14 No. of No. of No. of Vehicles Vehicles That Vehicles Run Travel Traveling in Орposite Overtook Overtaken by Test Vehicle Direction/ Time Test Number (min) Direction Vehicle Northward 5.25 100 2 2 2 5.08 105 2 1 3 5.30 103 3 1 4 5.15 110 1 5.00 101 6. 5.51 98 7 5.38 97 1 1 8 5.41 112 2 3 5.12 109 3 1 10 5.31 107 Southward 1 4.95 85 1 2 4.85 88 1 3 5.00 95 1 4 4.91 100 2 1 4.63 102 1 5.11 90 1 1 7 4.83 95 8 4.91 96 3 1 9 4.95 98 1 2 10 4.83 90 1.) A study of freeway flow at a particular site has resulted in a calibrated speed- density relationship as follows: V=57.5 (1-0.008 D); From this relationship, Find the free flow speed and the Jam density. Derive equations describing flow versus speed and flow versus density.The following data was collected from a lane when the highway was operating at capacity. Spot speeds (mph): 25, 30, 32, 35, 28, 35, 26, 29, 30, 34. Time Headways (sec): 2, 2, 1, 2, 3, 1.5, 2.5, 1.5, 2.5 what is the 85th percentile speed? Space mean speed(mph)? Jam density(veh/mi)? Capacity of the hwy lane?