Its a fairly good question. They wont collide as they are in separate orbits, which are many millions of km apart - orbits within orbits. The planets when drawn to scale are also tiny when compared with these orbits and distances. Having said that, their gravitational fields do indeed effect each other, distorting each others orbits.
They travel on an imaginary axis around the Sun. The Sun's gravitational pull keeps the planets from drifting away.
When you travel around the Sun or a planet, due to gravitational attraction, it is called an "orbit". It is also a "revolution" around the Sun or planet.
Within our Solar System, Neptune, the furthest planet from the Sun has the greatest distance to travel.
the time it takes to travel around the sun, a planet year
Mercury travels around the sun faster than any other planet (88 Earth days) because it is the closest planet to the sun.
No planet travels around the world. All planets travel around the sun. This is called the solar system.
Neptune
planet mars
The dwarf planet Pluto
Every planet has different size and is placed at different distance from the sun. The gravitational pull between the sun and the planet depends upon the distance and size of the planet and hence affects the speed of rotation and revolution of the planet around its own axes as well as around the sun. This specific distance and speed of revolution and rotation locks the planet in its orbit having specific radius which is unique for every planet. This is the reason they have separate path and speed to rotate around its own axes as well as around the sun. , hence they do not collide with each other.
That would be Saturn.
Uranus takes 84 earth years to travel around the sun.