PE Exam Transportation

Equations/References/Topics that are important to understand before taking PE Exam

Minimum Radius for Horizontal Curve

(Horizontal & Vertical Design)

Greenbook Chapter 3 Equation 3-8

(Horizontal & Vertical Design)

Where can you find Stopping Sight Distance on Grades?

(Horizontal & Vertical Design)

Greenbook Table 3-2

What is the Equation for Stopping Sight Distance on Level Roadways?

(Horizontal & Vertical Design)

Deceleration rate is 11.2 ft/s² (Equation 3-2 Greenbook)

Where can you Find Sight distance based on Horizontal Sight Offset (HSO)?

(Horizontal & Vertical Design)

Greenbook Equation (3-37)

*NOTE: Radius & HSO are Determined off of Centerline of INSIDE lane not Centerline of roadway

How can you Solve for Required length of Vertical Curve that Passes Under an Obstruction?

(Horizontal & Vertical Design)

Need elevations of E/F/G and distance of Obstruction from PVI

Total Float

(Project Management)

Amount of Time a Task can be Delayed Without Delaying the Entire Project Completion

Free Float

(Project Management)

Amount of Time a Task can be Delayed Without Delaying the Start of the Successor

What is the Format for Solving a Benefits/Cost Ratio Problem

(Engineering Economics)

Present Worth Before Implementation

Present Worth After Implementation

Benefit will be the Difference of the PW

Cost is the cost of the Implementation Plus any other Factors

What is the Average End Area Equation

How can you Estimate Base Free Flow Speed ( BFFS)

(Traffic Engineering)

BFFS = Speed Limit + 5 mph

What is the Flowrate equation for Freeway and Multilane Highway?

(Traffic Engineering)

HCM Equation 12-9

What is a Dilemma Zone?

(Traffic Engineering)

A zone where a driver can neither being their vehicle to a stop safely nor go through a signalized intersection