A county transportation agency has asked you to suggest the allocation of bridge preservation budget of 50 million between Interstate and non-Interstate highway bridges. Political considerations require that urban populations receive at least $25 million in benefits and rural areas at least $10 million. As a rule of thumb, a $1 million investment yields total user benefits of $1.25 million for $1 million spent on Interstate highway bridges $1 million for $1 million spent on non-Interstate highway bridges Your research also indicates that the distribution of benefits for each highway is

A county transportation agency has asked you to suggest the allocation of bridge preservation budget of 50 million between Interstate and non-Interstate highway bridges. Political considerations require that urban populations receive at least $25 million in benefits and rural areas at least $10 million. As a rule of thumb, a $1 million investment yields total user benefits of $1.25 million for $1 million spent on Interstate highway bridges $1 million for $1 million spent on non-Interstate highway bridges Your research also indicates that the distribution of benefits for each highway is

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter13: Evaluating Transportation Alternatives

Section: Chapter Questions

Problem 13P

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1. Research about Project Management for Road & Bridge Projects. 2. Give example projects for roads and bridges on how they do the project and the problems they encounter during the project.
Engineers are designing a new bridge to replace a 100-year-old bridge that has fallen into disrepair due to increased traffic and weathering. Describe a consideration that a computer model could help engineers analyze in order to develop the design. Describe one possible criterion and one possible constraint of the design of the new bridge.
Rash, Riley, Reed, and Rogers Consulting has a contract to design a major highway project that will provide service from Memphis to Tunica, Mississippi. R* has been requested to provide an estimated B/C ratio for the project. Relevant data are: Initial cost Right of way maintenance Resurfacing (every 8 years) Shoulder grading and re-work (every 6 years) $20,750,000 550,000 10% of first cost 750,000 Average number of road users per year Average time savings value per road user 2,950,000 $2 Determine the B/C ratio if i= 8%.
Reynold, Joshua, Dennis and Rogers Consulting Group has a contract to design a major highway project that will provide service from San Fernando to sudipen, La Union. The Consulting Group has been requested to provide an estimated B/C ratio for the project. Relevant data are: initial cost: 20,750,000.00 Pesos Right of way maintenance: 550,000.00 Pesos Resurfacing every 8 years: 10% of first cost Shoulder grading and re-work (every 6 years): 750,000.00 Pesos Average number of road users per year: 2,950,000 Average time savings value per road user: 2.00 Pesos Determine the B/C ratio if i = 8%.
Case Study During an investigation of a bridge collapse, Engineer A investigates another similar bridge, and finds it to be only marginally safe. He contacts the governmental agency responsible for the bridge and informs them of his concern for the safety of the structure. He is told that agency is aware of this situation and has planned to provide in next year’s budget for its repair. Until then, the bridge must remain open to traffic. Without this bridge, emergency vehicles such as police and fire apparatus would have to use an alternate route that would increase their response time by approximately twenty minutes. Engineer A is thanked for his concern and asked to say nothing about the condition of the bridge. The agency is confident that the bridge will be safe. Analyse the case using the six steps with the perspective of Engineer A
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The Department of Traffic is considering three improvement plans for a heavily traveled road within the city. The road improvement is expected to achieve three goals: improve travel speeds, increase safety, and reduce operating expenses for motorists. The annual dollar value of savings compared with existing conditions for each criterion and additional construction and maintenance costs is shown in Table 1. If the economic life of the road is considered to be 53 years and the discount rate is 4%, which alternative should be selected? Evaluate the two proposals based on economic evaluation criteria using the Net Present Worth (NPW) and benefit-cost ratio (BCR) methods for economic analysis.
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Dunkin City wants to build a new bypass between two major roads that will cut travel time for commuters. The road will cost $14,000,000 and save 17,500 people $100/yr in gas. The road will need to be resurfaced every year at a cost of $7,500. The road is expected to be used for 20 years. Determine if Dunkin City should build the road using B/C analysis. The cost of money is 8%.
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