Is it funny, or painful, when bots talk about their inner lives?

Sorry, couldn't stop myself.

Recently published:

Recently published: We compile operating track lengths for US streetcar and interurban systems from the McGraw American Street Railway Investments Directories for 1894–1926, aggregated by state and by metro area, with a national total. The United States network reaches an observed maximum of 80{,}660 km (50,120 miles) in 1918, with a logistic asymptote of 84,208 […]

In Montreal and Quebec City (Canada), traffic signal phasing configuration, vehicle volume, speed limits and the use of mobility assistance are key factors influencing the occurrence of traffic conflicts.

Norway cut EV incentives, resulting in a rush and record sales. That would usually cause a hangover, but EVs still took 94% share in January.

Recently published:

Recently published: Jantabadi, F., Ermagun, A., and Levinson, D. (2026) Spatial patterns of access-density mismatch reveal infrastructure gaps and strategic opportunities for new housing. npj Sustainable Mobility and Transport. [doi] The interaction between regional access to opportunities and local density of residences has been central to questions of urban structure. However, real-world dynamics often diverge from idealized economic models, resulting in an “access-density mismatch.” This mismatch occurs when rapid population growth, inefficient transport systems, or uneven infrastructure investments lead to a disconnect between where people live and the access provided by the transport network.

The words deportation and transportation share a common ancestor in the Latin portare, meaning “to carry.” Their prefixes define their intent: trans-port is to carry across; de-port is to carry away or off. Both relate to the porta—the gate or threshold. In the context of the state, transportation is the crossing of the threshold to […]

By Robert Schneider, Henry Barbee & 2 more. The 100 most populous US cities experienced larger traffic fatality rate increases during the 2010s than other parts of the country. Certain neighborhoods, roadways, and travel modes were most impacted.

Recently published: We compile operating track lengths for US streetcar and interurban systems from the McGraw American Street Railway Investments Directories for 1894–1926, aggregated by state and by metro area, with a national total. The United States network reaches an observed maximum of 80{,}660 km (50,120 miles) in 1918, with a logistic asymptote of 84,208 […]

Recently published: Li, Hoang, Bahman Lahoorpoor, David Levinson (2026) Streetcar and Interurban Deployment in the United States: 1894-1926. Findings We compile operating track lengths for US streetcar and interurban systems from the McGraw American Street Railway Investments Directories for 1894–1926, aggregated by state and by metro area, with a national total. The United States network reaches an observed maximum of 80{,}660 km (50,120 miles) in 1918, with a logistic asymptote of 84,208 km, inflection year 1901, and R2=0.89. We report cities and states by extent and timing, and show that most city and state series follow logistic S-curves.

The words deportation and transportation share a common ancestor in the Latin portare, meaning “to carry.” Their prefixes define their intent: trans-port is to carry across; de-port is to carry away or off. Both relate to the porta—the gate or threshold. In the context of the state, transportation is the crossing of the threshold to […]