3D travel time

3-D travel time table compression

3-D travel-time wave field

a travel writer’s boundary

AB-DF differential travel times

AC acoustic travel time

Acoustic Travel Time

Acoustic Travel Time Formation Factor Formula

ACOUSTIC TRAVEL TIME TOMOGRAPHY

activity and travel attributes

activity-travel behavior

Actual link travel time

actual travel speed

actuator travel

actuator travel characteristic

advanced travel information system

after-travel behavior

air travel

Altitude travel