Since it's near the train station, it's very convenient to get there.

convenient 是形容词，由动词 convene（召集、集合）派生而来，前缀 con- 表示"共同"，词根 -ven- 表示"来"，字面意思是"大家都容易到达的"，引申为"方便的、便利的"。