1: Raising the city's cycling commute rate is a worthwhile objective. · 2: Comparable cities that built protected lanes saw cycling commute trips rise sharply.
This is a two-speaker argument. The first selection asks for the one claim both speakers explicitly take a position on, read at the strength of the weaker commitment rather than the strongest version either speaker could be stretched to.
The first selection, the shared commitment. The council member notes that the council has formally adopted higher cycling rates as a goal, and the transit director opens with "I share the goal," so both explicitly affirm that raising the cycling commute rate is a worthwhile objective: option 1. The traps: option 2 (comparable cities saw trips rise sharply) is asserted only by the council member, and the director never affirms it; option 3 (merchants depend on the parking) and option 5 (the cited cities had garages nearby) are the director's points alone, which the council member never endorses; option 4 (a lane on Bryce would, on its own, double cycling trips citywide) overstates what the council member actually said, since trips rose sharply in other cities and neither speaker claims a citywide doubling here, so it is the over-strengthening trap; option 6 (merchants would oppose any change) is never stated by either speaker.
The second selection, a premise the council member leans on that the transit director has not endorsed. The council member's whole case rests on the other-cities evidence, option 2, which the transit director never affirms or uses; the director only points out that those cities had off-street garages nearby that Bryce lacks. The traps here: option 1 is the one claim the director explicitly shares, so it fails the requirement that the director has not committed to it; options 3 and 5 (merchants depend on the parking, and the cited cities had garages) are the director's own points, so the council member is not relying on them against the director; option 4 (citywide doubling) is a claim the council member never actually makes; option 6 is stated by no one.
The key trap here is over-strengthening. Option 4 in the first selection tempts you because it sounds pro-conversion, but neither speaker commits to a citywide doubling, so it is not a shared claim, it is an extrapolation past what was said. Option 2 also fails the first selection, not because anyone denies it, but because only the council member asserts it. Only the modest goal in option 1 is held by both speakers.