Ysgol Llandybie pupils who had written to their Member of Parliament got a response from the UK Government last week after Jonathan Edwards MP took their concerns to Westminster.
The school pupils had written to their local MP about the importance of being able to cycle to school and for pupils to have safer school routes.
Jonathan Edwards took up their campaign with the Cabinet Secretaries in both the Welsh and UK Governments who wrote a formal response in return.
Mr Edwards visited the school this week to personally deliver the responses to pupils and to discuss their work. The Carmarthen East and Dinefwr MP said he enjoyed being able to discuss and demonstrate how the democratic system can work.
Jonathan Edwards MP said: "I thoroughly enjoyed joining local school pupils and providing them with the Government's response to the concerns they raised with me. It was a real example of how our democracy can work.
"They wrote to me about issues which were important to them and I, as their local elected member, was able to take those concerns directly to the Secretary of State on their behalf.
"But just like another element of democracy, I was well and truly put through my paces with a host of inquisitive questions about my role, and what it is I do to make Carmarthenshire's voice heard in Parliament.
"I've assured the pupils that I will be keeping tabs on the Government to make sure safer routes to schools are progressed in the near future."