I was travelling in the Metro and i noticed that there arent any gaps in the railway line which is usually there to account for thermal expansion and contraction in different seasons. IS LUCKNOW METRO SOMEHOW RESISTANT TO ALL THAT???? WHY WERENT THERE GAPS IN THE RAILWAY LINE HUH????????????????????

I was travelling in the Metro and i noticed that there arent any gaps in the railway line which is usually there to account for thermal expansion and contraction in different seasons. IS LUCKNOW METRO SOMEHOW RESISTANT TO ALL THAT???? WHY WERENT THERE GAPS IN THE RAILWAY LINE HUH????????????????????