After 10 years, the public transportation remain unimproved. The modal split will also remain unchanged with 70% of person-trips utilize Public Transportation during peak period. After 10 years, the person-trip demand will increase from 450 to 675. If the overall capacity of the Public Transportation during peak period can carry up to 450 person-trips, the demand / PT supply capacity ratio is _______ (answer shall be in 2 demical places) Please correct answer

After 10 years, the public transportation remain unimproved. The modal split will also remain unchanged with 70% of person-trips utilize Public Transportation during peak period. After 10 years, the person-trip demand will increase from 450 to 675. If the overall capacity of the Public Transportation during peak period can carry up to 450 person-trips, the demand / PT supply capacity ratio is _______ (answer shall be in 2 demical places) Please correct answer

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter13: Evaluating Transportation Alternatives

Section: Chapter Questions

Problem 4P

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After 10 years, the public transportation remain unimproved. The modal split will also remain unchanged with 70% of person-trips utilize Public Transportation during peak period. After 10 years, the person-trip demand will increase from 450 to 675. If the overall capacity of the Public Transportation during peak period can carry up to 450 person-trips, the demand / PT supply capacity ratio is _______ (answer shall be in 2 demical places)
During morning peak hour, the passenger demand is 600. Assume that passenger demand is evenly distributed within that period and the average load/occupancy is 50 passengers per bus. Calculate the average headway of a city buses? If the passenger demand increases to be 750, calculate the number of bus units need to be added and the headway shorten?
Two routes connect an origin-destination pair with performance functions t₁ = 5 + (x₁/2)² and t₂ = 7+ (x2/4)² (with t's in minutes and x's in thousands of vehicles per hour). It is known that at user equilibrium, 75% of the origin-destination demand takes route 1. What percentage would take route 1 if a system-optimal solution were achieved, and how much travel time would be saved?
1) Suppose you are transport manager and asked to evaluate intermodal versus unimodal transportation for Istanbul-Izmir road using truck or truck+rail. If loading cost is 35 TL, unloading cost is 60 TL, Cost for truck (Ct) is 1100 TL, cost for rail (Cr) is 800 TL, total distance is 560 Km, and the carried amount is 1 container. If there is pre-transportation with 10 Km and 50 TL cost, find the optimal distance for rail to select intermodal transportation. Select one: a. 557 b. 503 c. 417 d. 529 2) Transport focus is with .............. Select one: a. none of them b. location and transport strategy c. location and inventory stragegy d. inventory and location strategy
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.
Answer the following questions based on your own understanding. Use your own words for answering: 1. Identify and briefly describe the two basic demand forecasting situations in transportation planning. What are the three factors that affect the demand for urban travel? Define the following terms: (a) home-based work (HBW) trips, (b) home-based other (HBO) trips, (c) non-home-based (NHB) trips, (d) production, (e) attractions, (f) origin, and (g) destination.
1. List the seven categories of transportation organizations, and give one example of each.
Three routes connect an origin to a destination with the following link performance functions: t_1 = 8 + 0.5 x_2 t_2 = 1 + 2x_2 t_3 = 3 + 0.75x_3 where t's in minutes and x's in thousands of vehicle per hour. If the peak-hour traffic demand is 4000 vehicles, determine the user equilibrium (UE) flows.
Discuss the five modes of transport by comparing each of the following: operational overview, typical strengths and limitations, freight characteristics, and the vehicle types found in each mode.
Three routes connect an origin-destination pair with performance functions:t₁ = 20 +0.5x1t2 = 4+ 2x2t3=3+0.2x3with t in minutes and x in thousand vehicles per hour.(a) Determine the User Equilibrium flow on each route if q = 4000veh/h. (b) What is the minimum q (origin-destination demand) to ensure that all the three routes are used under user equilibrium? (c) Suppose that Route 1 is closed for repair. Find the system optimal flow on routes 2 and 3 and compute the total travel times.
Define the KPI Keys Public transport service performance indicators through the model
Consider a simple transportation network that has one origin and one destination with two paths/links that provide access from the origin to the destination. One link is 9 miles long and has a capacity of 4800 vehicles per hour and a speed limit of 66 miles per hour. The other link is 6 miles long and has a capacity of 2400 vehicles per hour and a speed limit of 42 miles per hour. Assuming that 6000 drivers wish to make the trip from the origin to the destination, find the loaded network? a1 = 1.37904, b1 = 8.24124, a2 = 1.236, b2 = 6.2712