  We present the high-temperature (70 K < T < 300 K) resistivity anisotropy and
Hall effect measurements of the quasi-one-dimensional (1D) organic conductor
(TMTTF)2AsF6. The temperature variations of the resistivity are pronouncedly
different for the three different directions, with metallic-like at high
temperatures for the a-axis only. Above 220 K the Hall coefficient R_H is
constant, positive and strongly enhanced over the expected value; and the
corresponding carrier concentration is almost 100 times lower than calculated
for one hole/unit cell. Our results give evidence for the existence of a
high-temperature regime above 200 K where the 1D Luttinger liquid features
appear in the transport properties. Our measurements also give strong evidence
of charge ordering in (TMTTF)2AsF6. At the charge-ordering transition T_{CO}
\approx 100 K, R_H(T) abruptly changes its behavior, switches sign and rapidly
increases with further temperature decrease.
