transportation access; convenience of transport links
Refers to how well a location is served by public transport or roads; often used when describing the convenience of a place.
This apartment has good transportation access.
Living in a place with poor transport links is tough.
Compound of 交通 (transportation) + の (possessive particle) + 便 (convenience, facility). The reading べん for 便 is the standard on'yomi used in compounds meaning 'convenience'.