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Q1:Transportation Engineering Traffic Impact Study Location D: Courtyard Commons Townhouses (next to the Post Office) Team 17, Team 19, Team 21, Team 27 The project consists of three distinct parts as described below: PART 1: Field Observation of Entering and Exiting Trips Each team should count the number of vehicles, walking and bicycle trips entering and exiting their designated site between the hours of 4 and 6 PM on any weekday afternoon. Most sites have only one entrance and exit, so it should be possible for one person at a time to do the observation, in other words, you may do it in shifts. Storrs Commons and the IPB are the exception; these might require two observers to get all of the access points. Tally all entering and exiting trips in 15-minute periods according to the categories in the attached table. If your team is unable to find a weekday afternoon when you can all count, you may also do the count during the morning peak period from 7 to 9 am or on a Saturday between 10 am and 12 noon - please talk to the instructor if you need to do this. There is a data collection table worksheet attached at the end of this assignment for you to use for your field observations. PART 2: Comparison with ITE Trip Rates Once you have completed your observation of trips, find the peak hour entering and exiting trip volume for your generator, that is, the total count in the highest consecutive series of four 15-minute counts. Then estimate the peak hour entering and exiting volume according to the procedures in Trip Generation for the peak hour of the generator (Why is this the correct rate?). Excerpts that you will need from this manual are provided on HuskyCT in the folder titled "ITE Trip Generation." In order to apply the ITE trip generation formulae, you will need information about the size of your site; here are the sizes of each site: Location D: Courtyard Commons Townhouses (next to the Post Office): 47 units PART 3: Discussion Compare the observed and estimated values of entering and exiting trips. Consider the assumptions and source of the data for the estimation procedure as well as unique characteristics of your observation site (i.e., location near a college campus and high school). REPORT FORMAT Each group will turn in a written project report on or before the indicated due date in the form of a laboratory report that includes the following sections (each part will contribute to the grade as indicated). Please do not write more than 10 pages of double-spaced text (not including tables, figures, drawings and other exhibits). (10%) Introduction - describe the problem you were asked to solve. (10) Study location - describe your study site and its relative location and access to the road network, including an inventory sketch (plan or layout) depicting the location of the site you studied and its access intersections. (10) Data collection - describe your data collection procedure and itemize the quantities you observed. (10) Data tables - present all of the data you collected. You may list the data in an appendix, but please give summary information in the text of the report and be sure to refer to the data in the appendix. (10) Analysis method - describe your analysis method, including equations or other procedures you followed. (10) Analysis results - show your results in an appropriate table or figure in the text, along with your calculations, which may be placed in an appendix (be sure to refer to the appendix). (10) Discussion - discuss your analysis findings according to the guide above. (10) Conclusions - give a brief summary of the project: statement of the problem, data collected, analysis method and results, and summary of your discussion. In addition, your project report will be graded on clarity of verbal expression and use of graphics (10% each). Please bind your report with nothing more than a staple in the upper left-hand corner. 2 Map and addresses of each location. 4) Location D- Address: 111 Courtyard Ln, Storrs, CT 06268 - CE 2710 - PROJECT 2 - DATA COLLECTION TABLE Location: Date: Entering Exiting Time / Observer Vehicles Peds Bikes Vehicles Peds Bikes 4:00-4:15 1111 11 111 11 11 4:15-4:30 111 11 1 1111 1 4:30-4:45 HH HH 1 111 1 1 4:45-5:00 11 111 111 11 | 5:00-5:15 11 111 1 5:15-5:30 11 1 11 1 5:30-5:45 11 11 111 1 5:45-6:00 HH 11 1 1111See Answer
Q2:y Q1 As illustrated in left figure, given the H uo steady shear flow for two layers of fluids, a constant Fluid 1 velocity uo is maintained for fluid 2 @ y = H with "no h slip" boundary condition at stationary plate for fluid 1 @ Fluid 2 x y = 0. If fluid 1 is shear thinning (I1 = C1D1//1) while fluid 2 is shear thickening (I2 = C2/2D2), where C1,2 are constants and /1,2 = dux1,2/dy are steady shear rates), representative. Please determine steady shear rate of fluid 2 /2 @ interface with y = h. Q2 Knowing the description on the velocity of a flow ux = - tx, uy =t(y+1), please determine the pathline and the streamline function. Q3 Given the velocity of a steady flow ux = x -4y, uy =- y -4x, please determine whether the flow is incompressible and/or irrotational. If so, please calculate the stream function y and potential function ¢ for the flow. Q4 Please determine the pressure distribution for the irrotational 2D flow (with fluid density of p) by superposing flow of free vortex (ue = c/r in polar coordinates, c is a constant) with constant speed flow (ux = A, uy = B in Cartesian coordinates, A, B are constants).See Answer
Q3:1. An observer has determined that the time headways between successive vehicles on a section of highway are exponentially distributed and that 65% of the headways between vehicles are 9 seconds or greater. If the observer decides to count traffic in 30 second time intervals, estimate the probability of the observer counting exactly 5 vehicles in an interval. 2. At a specified point on a highway, vehicles are known to arrive according to a Poisson process. Vehicles are counted in 20-second intervals, and vehicle counts are taken in 120 of these time intervals. It is noted that no cars arrive in 18 of these 120 intervals. Approximate the number of these 120 intervals in which exactly three cars arrive. 3. Vehicles begin to arrive at a park entrance at 7:45 A.M. at a constant rate of six per minute and at a constant rate of four vehicles per minute from 8:00 A.M. on. The park opens at 8:00 A.M. and the manager wants to set the departure rate so that the average delay per vehicle is no greater than 9 minutes (measured from the time of the first arrival until the total queue clears). Assuming D/D/1 queuing, what is the minimum departure rate needed to achieve this? 4. At 8:00 A.M. there are 10 vehicles in a queue at a toll booth and vehicles are arriving at a rate of X(t)=6.9-0.2t . Beginning at 8 A.M., vehicles are being serviced at a rate of u(t)=2.1+0.3t ( \(t)and u(t) are in vehicles per minute and t is in minutes after 8:00 A.M.). Assuming D/D/1 queuing, what is the maximum queue length, and what would the total delay be from 8:00 A.M. until the queue clears?See Answer
Q4: Problem 1 A horizontal curve on a two-lane highway (11 ft lanes) has a central angle of 33 degrees and is designed for 60 mi/h with a 8 % superelevation. a) If the PI is at station 300+00, what is the station of the PT and how many feet have to be cleared from the inside lane's lane-shoulder edge to provide adequate stopping sight distance? b) If the normal component of centripetal force was considered, how much shorter would the radius of the curve be? Problem 2 For a horizontal curve design in an urban area, with a design speed of 40 mph, an 8-ft shoulder, and two 12-ft lanes in each direction, find the length of the curve considering a central angle of 60 degrees. Problem 3 A crest and sag curve connect a 0% road segment with a 2% road segment (see figure below). The two curves connect with each other (PVT = PVCs) and share a 3% common grade. If the design speed of the curves is 45 mi/h, what is the elevation difference between the two road segments? 09 ? -3% 2% Problem 4 An equal-tangent vertical curve connects a +1% and +3% initial and final grades, respectively, and is designed for 70 mi/h. The high point on the curve is at elevation 822 ft. If the PVC is at station 110+00, what is the elevation of the curve at station 112+12?See Answer
Q5:1. A 1400-ft-long sag vertical curve (equal tangent) has a PVC at station 115 + 00 and elevation 750 ft. The initial grade is -3.5% and the final grade is +6.5%. Determine the elevation and stationing of the low point, PVI, and PVT. (5) 2. A 1200-ft equal tangent crest vertical curve is currently designed for 50 mi/h. A civil engineering student contends that 60 mi/h is safe in a van because of a higher driver's eye height. If all other design inputs are standard, how high must the driver's eye height (in the van) be for the student's claim to be valid? (5) 3. An equal-tangent sag vertical curve is designed for 45 mi/h. The low point is 237 ft from the PVC at station 112 + 37 and the final offset at the PVT is 19.355 ft. If the PVC is at station 110+00, what is the elevation difference between the PVT and a point on the curve at station 111 +00?' (5)See Answer
Q6:Problem2) (10 points) A car is traveling 50 mi/h when the driver applies the brakes. The car is traveling on good wet pavement and is going down a 3% grade. The antilock braking system works intermittently during the stop. When the antilock brakes system is functioning, the braking efficiency is 100%. When the antilock system is not functioning the wheels lock and the braking efficiency is 70%. The antilock braking system turns off/on every 60 ft while the brakes are being applied (it is on for the first 60 ft of the stop, off for the second 60 ft, on for the third 60 ft of the stop, and so on). Under these conditions, what is the total distance needed for the car to stop after the brakes are applied? (Assume theoretical stopping distance, ignore aerodynamic resistance, and let f = 0.011.)See Answer
Q7:Problem 1) (10 points) A car weighs 2200 lb and is travelling 100 mi/h on a race track that is on a 3% upgrade. The car is preparing to pass a slower car and its torque/engine speed curve is given by (with Me in ft-lb and n, in revolutions per second): M₂=8n, -0.05n² Drivetrain efficiency is 90%, drive axle slippage is 2%, wheel radius is 15 inches, frontal area is 22 ft², drag coefficient is 0.35, and air density is 0.0022 slugs/ft³. If the car is in a gear that produces maximum torque, what would the car's maximum acceleration be?See Answer
Q8:Problem 1) (10 points) A car weighs 2200 lb and is travelling 100 mi/h on a race track that is on a 3% upgrade. The car is preparing to pass a slower car and its torque/engine speed curve is given by (with Me in ft-lb and ne in revolutions per second): M₁ = 8n₂ -0.05n² Drivetrain efficiency is 90%, drive axle slippage is 2%, wheel radius is 15 inches, frontal area is 22 ft², drag coefficient is 0.35, and air density is 0.0022 slugs/ft³. If the car is in a gear that produces maximum torque, what would the car's maximum acceleration be?See Answer
Q9:Problem 3. Multinomial Choice Models (15) A multinomial logit model with three alternatives (drive-alone, shared-ride, and transit) has been developed for forecasting mode choice for home-to-work commute trips. The utility functions have been estimated to be the following: VDA = -1.14 Cost DA -0.0461-Time DA VSR -0.8814-1.14. Cost SR -0.0461-Time SR +0.1737. Long Dist VTR Where, 0.17-1.14 Cost TR -0.0461- Time TR -0.114. Walk Time VDA is the utility for the drive - alone mode VSR is the utility for theshared-ride mode VTR is the utility for the transit mode Cost, is the cost for modei, (i=DA, SR, TR) Time, is the travel time by modei, (i = DA, SR, TR) Walk Time is the walk time associated with transit mode Long Dist = 1 if the commutetrip is long distance, 0 otherwise The urban region has four types of commuters classified based on the commute distance and the available modes. The transportation level-of-service characteristics for each of the four types of commuters are presented below. Type 1 Modes available DA,SR,TR Type 2 DA,SR,TR Type 3 DA and SR Type 4 DA and SR Commute distance short long short Cost, DA 0.94 3.79 1.05 long 4.33 Time, DA 18 61 17 67 Cost, SR 0.47 2.12 0.56 2.16 Time, SR 29.5 74 31 75 Cost, TR 0.33 1.8 NA NA Time, TR 27.5 126 NA NA Walk time 12 24 NA NA (a) For each type of commuter, compute the probability of choosing each of the available modes (b) The urban region has 4000 commuters of type 1, 2000 commuters of type 2, 3700 commuters of type 3 and 3100 commuters of type 4. Determine 1. The total number of person-trips (home-to-work commute trips) by car and by transit in the urban area. 2. The number of vehicle trips by car 3. The transit revenue 4. If transit improvements result in a 10% decrease in transit travel times and all else remains the same, (i) How many short distance (Type 1) commuters and long distance (Type 2) commuters will switch to transit?See Answer
Q10:Problem 2: Gravity Model Application (15) Use the estimates of the future year trip productions and attractions from Problem 1. Compute the inter-zonal trip distribution for the forecast year using gravity model. Be sure to perform the row and column factoring to match the row and column totals of your trip distribution matrix against the predicted productions and attractions. You can stop after two iterations (i.e., one column factoring and one row factoring iteration). Use the following discrete time periods (in minutes) in calibration: {0-5}, {5.1-10}, {10.1-15}, and {15.1-20}. Friction factors are provided in Table 3. Table 4 presents the inter-zonal travel time matrix for the forecast year. Table 3. Calibrated friction factors Time period Friction factor 0-5 0.878 5.1-10 1.752 10.1-15 1.284 15.1-20 0.777 Table 4. Forecast year inter-zonal travel time matrix zone 1 2 3 4 18 15 18 5 18 15 18 5 20 12 12 6 12 10 12 12 20227 222 5 12 10 12 12 68522 12345See Answer
Q11:Problem 1: Application of a growth-factor model for forecasting (15) Compute the inter-zonal trip distribution for the forecast year. Be sure to perform the row and column factoring to match the row and column totals of your trip distribution matrix against the predicted productions and attractions. You can stop after two iterations (i.e., one column factoring and one row factoring iteration). For computing future trip prediction, assume the following trip generation equations: 1.5+2.5*(household size) Number of trips produced by a household Number of trips attracted to a zone 1.45 (number of jobs in the zone) +1.3 * (total population/100), make necessary corrections if total productions and total attractions do not match. The socio-economic predictions have been made for the study region for the forecast year (Table 1). The base-year inter-zonal trip interchange matrix is also provided in Table 2. Table 1. Socio-economic forecasts Number of Zone households Average household size Number of jobs 1 200 2.375 827 2 270 1.842 1138 3 375 1.73 1110 4 275 2.16 1241 5 260 2.52 1069 Table 2. Base year inter-zonal trip interchange (flow) matrix Tij 1 2 3 فيا 4 5 Pi 1 250 125 375 75 150 975 2 100 400 50 225 200 975 3 225 420 350 1260 4 155 215 320 175 400 1265 5 190 300 300 450 150 1390 Aj 900 1100 1270 1345 1250 5865 Compute the trip interchange/distribution for the forecast year using the average growth factor approach. Perform two iterations.See Answer
Q12:Problem 2: (25 points) Vehicles begin to arrive at a parking lot at 7:45 A.M. at a constant rate of 4 veh/min and continue to arrive at that rate throughout the day. The parking lot opens at 8:00 A.M. and vehicles are processed at a constant rate of 1 vehicle every 10 seconds. Assuming D/D/1 queuing, what is the longest queue, the queue at 8:15 A.M., and the average delay per vehicle from 7:45 A.M. until the queue clears?See Answer
Q13:Problem 3: (25 points) The gate entrance to a park opens at 9:00 A.M. At 9:00 A.M. there are 32 vehicles in the queue waiting to enter. Vehicles continue to arrive (from 9:00 A.M. onward) at a rate of 2(t) = 4.2-0.05t (with 2(t) in veh/min and t in minutes after 9:00 A.M.). The gate attendant processes vehicles at a rate of µ(t) = 3 + 0.3t (with u(t) in veh/min and t in minutes after 9:00 A.M.). Assuming D/D/1 queuing, what is the maximum queue length and total vehicle delay?See Answer
Q14: Question #1 (5 pts.): A sieve analysis was performed on a sample of aggregate for use in an asphalt pavement, with the results shown below: No. No. No. Sieve Size (in.) 1/2 Amount retained (g) 3/8 4 No. 8 16 30 No. No. 40 50 No. 100 No. 200 pan 0 96.75 92 193.8 319.5 411.5 435.8 353.5 264 169.5 143 Do the following: a) Calculate the percent retained and percent passing each sieve, and graph the results on a 0.45 power graph (you may use the attached chart, or graph in Excel and include with your submission). (2 pts.) b) Calculate the fineness modulus and characterize the gradation of the material. (1 pt.) c) Briefly discuss its use as an asphalt aggregate based on the general requirements, as well as gradation required for Superpave as compared to the sieve analysis results. (1 pt.) d) Briefly discuss the benefits of using this material from a sustainability standpoint. (1 pt.) Question #2 (5 pts.): The aggregate in Question 1 will be mixed with asphalt binder to create a pavement to be used in Long Island. The 7-day average high air temperature is expected to be 99 degrees F (std. dev. 3.0 deg. F), and the average low temperature in the pavement is expected to reach 12 degrees F (std. dev. 1.5 deg. F). The pavement will be used to repave a busy rural highway. Address the following: a) Determine the performance grade of the asphalt that should be used for this pavement with 98% reliability. (2 pts.) b) Discuss the general considerations for ductility of the binder for the conditions stated. (1 pt.) c) If a penetration test yields a penetration of 11 mm into the asphalt, list its penetration grade, viscosity grade, and ductility. (1 pt.) d) Discuss the suitability of the addition of lime to the pavement mix. (1 pt.) Question #3 (6 pts.): The asphalt pavement is blended, compacted, and sampled, with the data shown in the table below. sample air asphalt abs. asphalt agg (bulk) agg (eff.) volume (cc) 250 mass (g) G 2.340 % (by mass) 1.012 N/A 2.682 2.787 4.7 Do the following: a) Complete the table by filling in the missing data. (2.5 pts.) b) Calculate VMA, VTM, VFA, Gmax (theoretical), and the effective asphalt content. (2.5 pts.) c) Briefly interpret the results. (1 pt.)See Answer
Q15: University of Missouri – Kansas City Dr. J. T. Kevern CE378 Civil Engineering Materials Spring 2024 Lab 5 - SuperPave Asphalt Testing *This information will be pooled between all lab groups and sections and used for HW#6 Lab Activity 1 – Standard Test Method for Theoretical Maximum Specific Gravity and Density of Bituminous Paving Mixtures - ASTM D2041 Procedure: 1. By hand break apart your loose asphalt mixture so the particles are not larger than about 6mm. You need at least 2500g of loose mixture. 2. Determine the mass of the vacuum pycnometer and cover filled with water. 3. Pour half of the water off and place all of your sample in the pycnometer. Make sure it is under water, filling as needed. 4. Place on the vibrating vacuum table for 10 minutes. 5. With the sample in the water determine the mass of the pycnometer, cover, sample, and water. 6. Calculate Gmm and record. A mm= A+D-E Where: Gmm=maximum specific gravity of the mixture A = mass of dry sample in air, g D = mass of lid and bowl with water, g E = mass of lid, bowl, sample, and water Binder A, mass of Content (%) sample in air, g D, mass of lid and bowl with water, g E, mass of lid, bowl, sample, and water, g Gmm 4.0% 2086.4 7396.9 8683.0 5.0% 2383.1 7400.4 8830.9 5.5 % 2252.1 7400.9 8746.3 1 University of Missouri – Kansas City - Dr. J. T. Kevern Lab Activity 2 Standard Test Method for Bulk Specific Gravity and Density of Non-Absorptive Compacted Asphalt Mixtures - ASTM D2726 1. Determine the mass of your dry/unconditioned “A” specimen in the air. Remove the top and bottom paper beforehand. 2. Determine the mass of the compacted sample underwater. 3. With a damp towel, bring to SSD condition and determine the mass. 4. Calculate Gmb and record. G mb=BC A Where: Gmb bulk specific gravity of the sample A = mass of dry sample in air, g B = mass of the saturated surface-dry specimen in air, g C = mass of the specimen in water, g Binder A, mass Content (%) of B, mass of the C, mass of the saturated surface- specimen in water, g dry specimen in air, sample in air, g 4.0% 3727.9 3737.2 2183.8 5.0% 3701.2 3707.1 2178.3 5.5% 3697.3 3701.1 2185.5 Gmb 2 University of Missouri – Kansas City Lab Activity 3 - Tensile Strength Ratio – AASHTO T283 Procedure: Dr. J. T. Kevern 1. Vacuum saturate one puck (B sample) of each binder content at 25°C for 24 hours. 2. Test the splitting tensile strength of the conditioned and dry specimens. 3. Calculate the splitting tensile strength. St Where: St = tensile strength, psi P = Maximum load, lbsf T = specimen height before testing, in D = specimen diameter, in = (2*P) (П*T*D) 4. Calculate the tensile strength ratio. TSR = Strength conditioned Strength dry * 100 > 80% Binder Specimen Condition Specimen Maximum Tensile Content height Load (lbf) Strength Tensile Strength Ratio (%) (mm) (psi) (%) 4.0% A Dry 89.9 2650 4.0% B Saturated 90.4 2360 5.0% A Dry 88.9 1920 5.0% B Saturated 88.2 1660 5.5 % A Dry 87.3 1560 5.5% B Saturated 87.3 1310 3/n CE378 Civil Engineering Materials HW #6 Asphalt Mixture Proportions 30 pts Spring 2024 Due 3/7/24 1. (5) Calculate the Gmm, Gmb, voids, individual tensile strength, and TSR for the provided data. 2. (15) Plot binder content versus voids and determine the optimal binder content. Plot TSR versus voids and determine if the optimal binder content has acceptable moisture performance. 3. (10) Develop optimized mixture proportions, including volumetrics, for the selected binder content. Assume 50% CA1, 10% CA2, and 40% FA, by mass of aggregate. Both coarse aggregates have specific gravity of 2.65 and absorption of 1%. The fine aggregate has a specific gravity of 2.62 and absorption of 0.8%. The specific gravity of our binder is 1.017.See Answer
Q16:Problem 2: minimum cycle length and the effective green time for each phase An intersection has a three-phase signal with the movements allowed in each phase and corresponding analysis and saturation flow rates shown in the following table. Calculate the sum of the flow ratios for the critical lane groups. Phase Allowed movements 2 Analysis flow rate Saturation flow rate NB L, SB L 330, 365 veh/h 1700, 1750 veh/h NB T/R, SB T/R 1125, 1075 veh/h 3400, 3300 veh/h с , EB L, WBL 110,80 veh/h 650, 600 veh/h 3 EB T/R, WB T/R 250,285 veh/h 1750, 1800 veh/hSee Answer
Q17: Instructions need this sketched out by hand as a blue print Start point https://maps.app.goo.gl/nLZZFbFqCNBSKnRx7?g_st=ic Finish point https://maps.app.goo.gl/h1aQrWb9gPxR9ApZ9?g_st=ic student note: I need this sketched out Drawn as a blue print by hand With details of the road And the distance Two lane street It's for transportation engineering A4 is fine It needs to have Ll the distances and cross streets filled out in between Traffic lights, Walk paths Everytning that goes into the distance between the 2 roads. And a key A basic blue print I need to be able to print this on 8x11 normal paper It needs to be all on one page It's this distran s And this road, It's merrick road, Between rockaway parkway And central avenue avenue: https://maps.app.goo.gl/qMiu4FgGFn6vjUiS8?g_st=ic See Answer
Q18:3.1 A 520-ft-long equal-tangent crest vertical curve connects tangents that intersect at station 340 + 00 and elevation 1325 ft. The initial grade is +4.0% and the final grade is -2.5%. Determine the elevation and stationing of the high point, PVC, and PVTSee Answer
Q19: NEED TYPED SOLUTION WITH DETAILED STEPS Q) The figure shows a network diagram for traffic in one-way streets, with the unit cars/hour. Determine the traffic flow. How many cars can maximally pass the stretch from A to B per hour? 100 4 loo A X4 с 200 50 x3 A100 B . X2 D 450 50 150See Answer
Q20:Problem 4 (25 points) An equal-tangent vertical curve connects a +1% and +3% initial and final grades, respectively, and is designed for 70 mi/h. The high point on the curve is at elevation 822 ft. If the PVC is at station 110+00, what is the elevation of the curve at station 112+12?See Answer

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