As they walk back into the Capitol today for the first time in over a month, lawmakers better be feeling well-rested and ready to work, because there’s no time to ease back into the business of legislating at this point. In the roughly 11 weeks the House plans to be in session before year’s end and the 13 weeks that are scheduled for the Senate, leaders will scurry to avert crisis after crisis as they march headlong through the barrage of deadlines before them. Those in the transpo-sphere have a particularly cluttered calendar, with potential doomsdays marked for the Sept. 30 expiration of FAA authorization and overall government funding, the Oct. 29 cutoff for highway and transit authority, the mid-December mark for another Highway Trust Fund refill and the yearend trigger for positive train control compliance.