The most common and most likely answer to this crossword clue is the 6 letter word ROUTES
R
O
U
T
E
S
Buddy explains!

The straight part
We know that "roads" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case roads = routes.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does ROUTES mean?
ROUTES noun- A course or way which is traveled or passed.
- A regular itinerary of stops, or the path followed between these stops, such as for delivery or passenger transportation.
- A road or path; often specifically a highway.
- One of multiple methods or approaches to doing something.
- One of the major provinces of imperial China from the Later Jin to the Song, corresponding to the Tang and early Yuan circuits.
- A specific entry in a router that tells the router how to transmit the data it receives.
- To direct or divert along a particular course.
- To connect two local area networks, thereby forming an internet.
- To send (information) through a router.