Familiarity with a place; a good sense of the local area, including knowledge of roads, shops, and local conditions.
初めて来た街でも土地勘があれば道に迷いにくい。
Even in a town you visit for the first time, if you have a sense of the area you're less likely to get lost.
彼はこの辺りの土地勘があり、いい店をたくさん知っている。
He knows the area well and knows many good shops.
不動産の営業には土地勘があることが強みになる。
Having local knowledge is an advantage for real-estate salespeople.