updated  safe_action to account for the fact that the lead vehicle  (#62)
updated  safe_action to account for the fact that the lead vehicle  (#62)

* updated  safe_action to account for the fact that the lead vehicle could have a smaller position than the following vehicle due to the mod in ring road

* added some init files

* Changes to SLC

* sumo binary

* deleting xml files

cathywu/flow,cathywu/flow