A four-lane urban freeway is rolling on rolling terrain with 12-ft lanes, obstructions 2-ft from the right edge of the traveled pavement, and nine ramps within three miles upstream and three miles downstream of the midpoint of the analysis segment. The traffic stream consists primarily of commuters. A directional weekday peak-hour volume of 2400 vehicles is observed with 800 vehicles arriving in the most congested 15-min period. If the traffic stream has 10% large trucks and buses and recreational vehicles, determine the level of service.

Present a couple of arguments for selecting a president by electoral votes rather than by popular vote.

A vertical curve has an incoming grade of +4.4% and an exit grade of -2.2%. The length of the curve is 450.00 ft. The intersection of the grades is at 10+00 and the elevation at that point is 440.00. Compute the elevation of the +00 points on the curve. Then determine the location and elevation of the highest point on the curve. If there is an existing bridge at this location over the proposed road, and the elevation of its lowest point is 451.00 and the required clearance is a minimum of 14.0 ft, does this curve need to be re-designed, or will it fit the required parameter?

PLZ break into steps

Discuss Jacobs’s choice of war metaphor to describe her struggle with Flint. How does she define violence?

1. Determine shear force resisted by a Reinforced concrete beam of size 230 x 450 mm simply supported over an effective span of 5.5 m which is reinforced with 4 - #16 mm bars in tension, supported with #8 mm dia 2-legged stirups @ 150 mm c/c upto 0.25 L from end Support and #8 mm dia 2-legged stirups @ 100 mm c/c at mid-span. consider moderate exposed conditions, use M20 grade of concrete and Fe 415 grade of HYSD steel.

(10 pts) According to counts taken 3 years ago that are available on the ADOT’s website, SR441 had an AADT value of 17,140 in downtown Tucson. While waiting for PAG or ADOT to retrieve the hourly traffic counts for SR441 from its archives, the city engineers decided to use the Florida default values to begin his analysis. A short time later, the requested data - the peak hourly volume was 1779. (a) What K-factor should the city engineer have used in his preliminary analysis while waiting for hte state’s data? What is the resulting peak volume? (b) What K-factor did thesegment of SR441 acctually have, according to the state’s data? (c) What is the impact of using the Florida data? Typical K-Factor for Florida Roads Typical K-Factors for Florida Roads Area Types K-Factor Urban 0.093 Transitioning/Urban 0.093 Rural Developed 0.095 Rural Undeveloped 0.100

Examine one of the Critical Infrastructure Sector-Specific Plans (Department of energy/defense/ homeland security/environmental protection agency), and offer a brief analysis of the strategy, strengths, weaknesses, and recommendations for enhancement of the plan.

1. A rectangular beam 230 mm wide is subjected to the following at a section
   • Ultimate bending moment of 135 kn.m
   • Ultimate shear force of 90 kn
   • Use M25 grade of concrete and Fe 415 steel

Design a suitable section and find the (flexural & shear) reinforcement required in the section.

1. A one-way slab has been designed for a simply supported span of 4.0 m with an overall depth of 170 mm and clear cover of 20 mm, using M 20 concrete and Fe 415 steel. The dead loads are taken as 5.0 kN/m² and the live loads as 2.0 kN/m². The longitudinal bars are designed as 10 mm φ @ 150 c/c. Verify the adequacy of the thickness provided,

1. Applying the limiting span/effective depth ratio;
2. Actual calculation of total deflections.

Considering a vertical sluice gate in a horizontal smooth rectangular channel, the upstream and downstream water depths are 5.1 and 0.45 m, respectively. The upstream flow velocity is 0.5 m/s and the channel width is 27 m. Calculate the downstream flow depth and the force acting on the sluice gate. Draw the control volume and show the forces acting on the sluice gate.

What are the factors affect coagulation and flocculation process?

A doubly drained specimen, 2.54 cm in height, is consolidated in the lab under an applied stress. The time for 50% overall (or average) consolidation is 12 min.

(a) Compute the cv value for the lab specimen.

(b) How long will it take for the specimen to consolidate to an average consolidation of 50%?

(c) If the final consolidation settlement of the specimen is expected to be 0.43 cm, how long will it take for 0.18 cm of settlement to occur?

(d) After 14 minutes, what percent consolidation has occurred at the middle of the specimen?

1. Determine the 25-year flow for a 200 square mile watershed in Region 10 of Arizona, which has annual precipitation of 15 inches per year. Comment on its accuracy, that is what are the upper and lower error estimates in terms of cubic feet per second.

2. Determine the 5-year flow for a 25 square mile watershed in Region 14 of Arizona at an elevation of 5000 feet. Comment on its accuracy, that is what are the upper and lower error estimates in terms of cubic feet per second.

3. Determine the 100-year flow of a 70 square mile watershed in Region 12 of Arizona at an elevation of 3500 feet. Comment on its accuracy, that is what are the upper and lower error estimates in terms of cubic feet per second.

1. Describe and sketch a weld cross section including the weld metal, heat affected zone, and base metal on cold worked material. In the heat affected zone, make sure to label what is happening as the distance increases from the weld.

Determine the reactions at the support of the beam. Shear force and bending moment for the beam are described by V(x)= c0 + c1x + c2x2 and M(x)= k0 + k1x + k2x2 + k3x3, respectively. Calculate the coefficients for the shear force and bending moment equations. Use L = 5.8 m, q = 2.7 N/m, and w = 8.6 N/m for your calculation.

Also, determine

Vertical reaction force at A in N (upwards force is positive, round your result to 1 decimal place)

Reaction moment at A in Nm (clockwise moment is positive, round your result to 1 decimal place)

Location of the maximum shear force in the beam in m (round your result to 1 decimal place)

Maximum shear force in the beam in N (round your result to 1 decimal place)