**Explanation:**

Settlements that develop along roads, rivers, and other linear features are known as linear settlements. These settlements are characterized by their elongated shape, following the course of the road or river.

**Reasoning:**

Linear settlements develop along linear features due to several reasons:

1. **Transportation:** Linear settlements often develop along roads, rivers, or other transportation routes because these routes provide easier access to goods and services. They allow for the movement of people, goods, and ideas, making them ideal locations for settlements.

2. **Trade and Commerce:** Linear settlements are often associated with trade and commerce due to their proximity to transportation routes. The presence of a road or river facilitates the movement of goods, attracting traders and merchants to set up businesses along these routes.

3. **Water Resources:** Linear settlements along rivers provide easy access to water resources for drinking, irrigation, and transportation. Rivers have historically been important for settlements, as they provide a source of water, food, and trade opportunities.

4. **Defense:** Linear settlements can also offer defensive advantages, as the linear shape allows for easier defense against potential threats. By positioning the settlement along a natural or man-made barrier like a river or road, it becomes easier to defend against attacks from one direction.

5. **Topography:** The topography of the land may also influence the development of linear settlements. For example, settlements may follow the contours of a valley or a ridge, taking advantage of natural features for shelter or protection.

6. **Accessibility:** Linear settlements offer better accessibility to the surrounding areas compared to circular or square settlements. With a linear shape, it is easier for people living in these settlements to travel to neighboring villages, towns, or cities.

Overall, the linear shape of settlements that develop along roads, rivers, and other linear features is a result of various factors such as transportation, trade, water resources, defense, topography, and accessibility. This form of settlement allows for better connectivity and access to resources, making it a preferred choice for human habitation.