You need to ride up the road.

(Which vehicle does the other person have to ride? Is this expression used only for riding a horse? What is the meaning of 'ride up'? Does the other person need to ride a horst toward the place which is up?)

We can use any vehicle to ride up the road. It could be a horse, bicycle, motorcycle, car, or truck.

Regional differences dictate whether we ride "up" the road or "down" the road. They both mean the same thing.

The phrase "ride up the road" generally implies traveling by some form of transportation along a road that goes upward or uphill. While this expression can be used in various contexts, it does not exclusively refer to riding a horse. "Ride up" can be used with different vehicles such as bicycles, motorcycles, or even cars, depending on the mode of transportation being used.

To determine which vehicle the other person needs to ride, you would need more context or information about the specific situation. If someone is referring to riding up a road, it could mean using any vehicle suitable for traveling on roads, as long as it can handle the uphill terrain.

In this scenario, the phrase "ride up" refers to the act of moving or traveling in a vehicle along a road that ascends or goes uphill. The term "up" indicates that the road has an upward slope or elevation, suggesting that the destination is higher in altitude compared to the starting point. It does not necessarily imply riding a horse toward a location that is situated at a higher elevation.

To clarify the exact vehicle or meaning of "up the road" in a specific situation, it would be crucial to understand the context and any additional details provided.