Prepositions with nouns

Prepositions used with “road”

Different prepositions with road express location, movement, purpose, or relationship. On the road is the most common for travel or position.

Quick answer

Which preposition goes with road?

Use on the road for travel or position along a road. Use in the road for something physically blocking or occupying the roadway. Use by the road for location beside it. Of road is uncommon except in phrases like the side of the road. For road often expresses purpose, such as plans for road safety.

We spent hours on the road yesterday.
There was a fallen tree in the road after the storm.
They stopped by the road to rest.
The government announced funding for road repairs.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
on + road

Travel or position along a road

Use on the road for travelling or being located along a road.

She has been on the road for two weeks.
There were many trucks on the road this morning.
2
in + road

Inside the roadway

Use in the road for objects or people occupying the actual roadway.

A deer was standing in the road at night.
There is broken glass in the road ahead.
3
by + road

Next to the road

Use by the road for something beside the road.

They built a café by the road.
Wildflowers grew by the road in spring.
4
for + road + noun

Purpose or intended use

Use for before a noun phrase related to roads.

The city approved money for road maintenance.
New rules for road safety start next month.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
on the road
We met many cyclists on the road.
travelling or located along the road
in the road
A branch was lying in the road.
occupying the roadway
by the road
There is a hotel by the road.
beside the road
of road
The phrase of road is not a standard standalone pattern.
normally replaced by road as a modifier or by of the road

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Confusing in the road and on the road

In the road means inside the roadway; on the road often means travelling.

✕ We were in the road for six hours driving north. ✓ We were on the road for six hours driving north.

Using of road alone

Use road as a modifier or add an article.

✕ The side of road was muddy. ✓ The side of the road was muddy.

Quick practice

Choose the expression that matches the intended meaning.

1. They have been ___ the road since dawn.
2. A dog ran ___ the road.
3. The town received funding ___ road repairs.

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Frequently asked questions

What is the difference between on the road and in the road?

On the road usually means travelling or located along a road. In the road means physically inside the roadway.

Can I say by road?

Yes. By road means using roads as transport, as in goods transported by road.

Is of road correct?

Not usually as a standalone phrase. English more often uses road as a modifier or of the road.

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