[R] Random effects in GAMs

I am now trying to use random effects in GAMs developed by Professor Simon Wood. Prof Wood uses s(...,bs="re") to account for the random effects. Random intercepts models or random slopes models are two different types of mixed linear models or general random effects model (Cameron and Trivedi, 20

Re: [R] Random effects in GAMs

I am now using random effects of GAM to predict crash frequency at intersections. The family is negative binomial distribution. I wonder if this term bs="re" developed by Prof Simon Wood can account for both random intercepts and random slopes effects together? It is longitudinal data. The number