Meaning of 便宜 in Japanese

There are many rest stops along the freeway for the convenience of travelers.

It's your duty to care for your parents regardless of the inconvenience.

The public convenience should be respected.

Television has the advantage of providing sports fans with greater convenience.

In other words, the merits, etc. of making detours are the consideration of the attitudes of the landowners whose property the line would cross, the convenience of other towns and villages, as well as connection with other railway lines.