Truck Dispatcher Geographical Knowledge 5 — Questions and Answers
Question 1: A dispatcher needs to route an oversize load from Phoenix, AZ to San Diego, CA while avoiding mountain grades. Which route is flattest?
- I-8 through Yuma (Correct answer)
- I-10 through Palm Springs
- US-60 through Globe
- AZ-85 south to I-8
Correct answer: I-8 through Yuma
I-8 through Yuma follows a low desert corridor with minimal grades, making it the preferred route for oversize loads between Phoenix and San Diego.
Question 2: Which U.S. metropolitan area is commonly called the 'crossroads of America' due to its central interstate hub?
- Indianapolis, IN (Correct answer)
- Columbus, OH
- St. Louis, MO
- Louisville, KY
Correct answer: Indianapolis, IN
Indianapolis sits at the intersection of I-65, I-69, I-70, I-74, and I-465, earning Indiana its official motto 'Crossroads of America.'
Question 3: When routing a load from the Pacific Northwest to the Southeast, dispatchers commonly use which north-south connector through the middle of the country?
- I-15 to I-25 south to I-10 (Correct answer)
- I-5 south to I-8 east
- US-101 to I-40 east
- I-84 to I-80 to I-35
Correct answer: I-15 to I-25 south to I-10
I-15 south to I-25 through Utah and New Mexico then connecting to I-10 east is a common inland route avoiding Pacific Coast congestion.
Question 4: Which Great Lakes port is critical for steel and auto parts freight moving into the Midwest manufacturing corridor?
- Gary, IN (Correct answer)
- Duluth, MN
- Toledo, OH
- Green Bay, WI
Correct answer: Gary, IN
Gary, Indiana, on the southern tip of Lake Michigan, is a major steel production and receiving port feeding auto manufacturers throughout the Midwest.
Question 5: A truck must avoid low clearance bridges on a route through New York City. Which borough is entirely accessible by bridge or tunnel only?
- Manhattan (Correct answer)
- Staten Island
- Queens
- Brooklyn
Correct answer: Manhattan
Manhattan is an island accessible only via bridges or tunnels, many of which have height or weight restrictions critical for dispatcher routing.
Question 6: The 'I-5 Corridor' on the West Coast connects which three major cities?
- San Diego, Los Angeles, and Seattle (Correct answer)
- San Francisco, Portland, and Vancouver BC
- Los Angeles, San Francisco, and Portland
- San Diego, San Francisco, and Sacramento
Correct answer: San Diego, Los Angeles, and Seattle
I-5 runs from San Diego in the south through Los Angeles and continues north through Portland to Seattle (and into Canada).
Question 7: Which U.S. region is most affected by seasonal weight restrictions on roads due to spring thaw?
- Upper Midwest and New England (Correct answer)
- Gulf Coast states
- Pacific Southwest
- Mid-Atlantic states
Correct answer: Upper Midwest and New England
States in the Upper Midwest and New England impose spring weight restrictions when frozen ground thaws, weakening road bases and increasing damage risk from heavy trucks.
Truck Dispatcher Geographical Knowledge 5
A dispatcher needs to route an oversize load from Phoenix, AZ to San Diego, CA while avoiding mountain grades.
Which route is flattest?