Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 19, Problem 5P
To determine
Difference between ESAL and truck factor.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Define Vehicle collision loads
How a paved road is different from a concrete road? Mention the advantages and disadvantages of the both.
An axle weight study on a section of highway gave the following data on axle load distribution. Determine the truck factor for this section of highway. Assume
SN = 4
and
pt = 2.5.
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- Determine the required structure number of the pavement based on the following information: . . ESAL= 5 million Reliability = 99% Standard deviation = 0.45 • Pi = 4.5, Pt = 2.5 . Subgrade Mr=9,000psiarrow_forwardDefine Vehicle dynamic loadsarrow_forwardThe present serviceability index ( PSI ) of a road section has area of 1000 sq.ft is rounded to ................. If its condition ; rutting = 0.5 in , cracks length = 50 ft . , and Patching area = 5 sq . ft . where in = number of interval .... use Y = 0.0 , -0.01 , 3.68 , 0.4 , -3.3 , * 0.81 , 2.2 , -0.42 ; -3.35 , 3.02arrow_forward
- What are the suggested thicknesses for an asphalt concrete surface parking area for heavy trucks on gravelly or sandy well-drained soils? 1. Calculate the metric tons of asphalt concrete required to pave 2 km of roadway 4 m wide and 80 mm thick. The density of the paving material is 2370 kg/m3. 2. Calculate the compacted tons per hour of asphalt concrete if a 4.5-ft-wide roller traveling at 3 mph over a 3-in.-thick lift requires five passes to achieve a required density of 147.6 pcf. (The project field conditions are average.)arrow_forwardRehabilitation methods of PAVEMENT CONDITION INDEX?arrow_forwardWhat does PG76-28 mean in pavement construction?arrow_forward
- How many 16-kip axle loads are needed to reduce the serviceability index to the same p, = 2.5 limit?arrow_forwarda segment of freeway consists of two upgrades of 2%, 800 m long and 3% 600 m long. Determine the PCE trucks/buses and recreational vehicles on this composite upgrade if 6% of vehicles are truck and 10% are recreational vehicles. Determine the number of lanes required for a freeway section if the section is to operate at LOS C. The input parameters include: One Cloverleaf interchange per mile (ramp density = 4 ramps/mile or 2.5 ramps/km) lane width = 12 fr (3.6m) right-side lateral clearance = 6years (1.8m) traffic composition: 10% trucks, 2% RVs V = 3000 veg/h Number of lanes: Must be greater than or equal to 2 Pero direction PHF = 0.95 Analysis segment is (0.35 miles (0.56km)) long with 4.5 % gradearrow_forwardGiven a concrete pavement with a thickness of 8 in. (203 mm), a kvalue of 100 pei (37.1 MN/m³) doweled joints, and no concrete shoulders, determine the allowable repetitions under a 54-kip (240-kN) tridem-axle load based on erosion enteria. The Question is related to Highway and transportation Engineering.arrow_forward
- A three-lane northbound section of interstate (withthe design lane conservatively designed) has rigidpavement (PCC) and was designed with a 10-inch slab,90% reliability, 700 lb/in2 concrete modulus of rupture,4.5 million lb/in2 modulus of elasticity, 3.0 load transfercoefficient, and an overall standard deviation of 0.35.The initial PSI is 4.6 and the TSI is 2.5. The CBR is 2with a drainage coefficient of 1.0. The road wasdesigned exclusively for trucks that have one 24-kiptandem axle and one 12-kip single axle. It is knownfrom weigh-in-motion scales that there have been 13million 18-kip–equivalent single-axle loads in the entirenorthbound direction of this freeway so far. If a sectionof flexible pavement is used to replace a section of thePCC that was removed for utility work, what structuralnumber should be used so that the PCC and flexiblepavements have the same life expectancy (the new lifeof the flexible pavement and the remaining life of thePCC)?arrow_forwardthe 15 year design traffic loading is 5× 10^5, design suitable pavement structures by using Modified Shell Method. If the subgrade CBR = 2.5, and CBR=6.arrow_forwardhighway engineering laboratory test CBR (California Bearing Ratio) calculation and dissucationarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Traffic and Highway EngineeringCivil EngineeringISBN:9781305156241Author:Garber, Nicholas J.Publisher:Cengage Learning
Traffic and Highway Engineering
Civil Engineering
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Cengage Learning