Collocations for traffic - noun

bad, bumper-to-bumper, busy, congested, heavy, terrible
The traffic was terrible on the way here.

light
fast, fast-flowing
slow-moving
stop-and-go (AmE)
passing
She waved her arms at the passing traffic, pleading for someone to stop.

automobile (AmE), lorry (BrE), motor, road, truck (esp. AmE), vehicle, vehicular
foot, pedestrian
air, airline
an air traffic controller

boat, maritime, river, sea
rail, railroad (AmE), railway (BrE)
freeway (in the US), highway (in the US), interstate (in the US), motorway (in the UK)
commercial, freight, goods, industrial, passenger
city, city-centre (BrE), downtown (AmE), local, town-centre (BrE), urban
international
commuter, tourist
morning, rush-hour
holiday
oncoming
I stood waiting for a gap in the oncoming traffic.

through
Through traffic is directed around the bypass.

northbound, southbound, etc.
inbound, outbound
one-way, two-way

stream

generate, increase
Building larger roads could generate more traffic.

cut, reduce
slow down
block, disrupt, hold up, obstruct, snarl, stop, tie up
Traffic was held up for six hours by the accident.

control, direct
divert
avoid, beat
We set off early to beat the traffic.

navigate
The driver calmly navigated the heavy traffic.

watch

build up, thicken (esp. AmE)
Traffic was already building up as early as 3 p.m.

grow, increase
Traffic has increased by 50% in ten years.

clog sth
Traffic clogs the streets of the city.

thin (esp. AmE)
Traffic thins noticeably after 9 a.m.

flow, move, speed, travel
The road is being widened to keep traffic moving.

go by, pass
stop
head
We joined the traffic heading north.

roar, rumble

accident
fatality
hazard
Sheep are a traffic hazard in the hills.

chaos, congestion, delays, disruption, hold-ups, jam, problems, queues (BrE), snarl (esp. AmE)
fumes, pollution
noise
flow, speed
Widening the road would improve traffic flow.

levels, volume
calming (BrE), management, restraint, safety
sign, signal
laws, legislation, regulations
court (AmE)
system
offence/offense (esp. BrE), violation (esp. AmE)
ticket (= an official notice to pay a fine)
camera
stop (AmE)
The cop was shot during a routine traffic stop.

bollard (BrE), circle (AmE), cone, island
A traffic island at the junction separates left- and right-turning vehicles.

artery (formal), route
lane
information, report, survey, update
cop, officer, police, policeman, warden (BrE)
engineer, planner (BrE)
duty
a policeman on traffic duty

the volume of traffic

radio, telephone
data, voice
network
email, Internet, Net, search-engine, site, Web, website
Our company will help you generate site traffic.

targeted
These tips should help you generate more targeted traffic to your website.

real-time
inbound, incoming
outbound, outgoing

boost, build, generate
receive, send
attract, draw
carry
handle, manage
monitor
encrypt
redirect, re-route, route

flow
grow, increase

pattern
load
capacity

illegal
arms, drug
international

traffic in sth
the traffic in arms