When Arab terrorism against Israelis ends, there will be far fewer roadblocks. In the meantime wannabe terrorists are caught at roadblocks on almost a daily basis (how stupid can they get).So for the meantime - there will be roadblocks to that those meaning to strap themselves with explosives remain among their own people so that the IDF can go and get 'em before they do too much damage. Roadblocks come and go (depending on their necessity). Peope killed by murdering terrorists permanently go.....
U.S. asks Uzbekistan to join anti-ISIS coalition (Reuters)
from the article: UN: Israel has added dozens of new roadblocks in West Bank